delivered the opinion of 'the court.

This is one of several appeals heard at the present term of this Court, which were taken from orders of the lower court refusing to allow certain claims of creditors of the United Surety Company of Baltimore, which was placed in the hands of receivers on January 13th, 1911. This claim was made by the United States of America, and is for the amount of the penalty of a bond ($42,000) given by the Midland Land & Improvement Company on August 13th, 1907, with the United Surety Company as surety, for the performance of a contract made by it with the United States for dredging in Newark Bay and Passaic River, N. J. A similar bond was entered into the same day by the Bankers Surety Company in the penalty of $58,000. The contract was dated the 12th of August, 1907, and was entered into on behalf of the United States by Col. D. W. Lockwood, Corps of Engineers, IT. S. Army.

Another contract was made on August 3rd, 1911, between the Midland Land & Improvement Company and the United States, represented by Col. Wm. T. Russel, Corps of Engineers, and the appellees contend that that contract was an alteration of the one in 1907 of a material ldnd, and, as it was not consented to by the United Surety Company, or by them as receivers, that company was discharged from all liability on tbe bond. The auditor so held, and disallowed the claim of the United 'States, and the lower court having overruled exceptions taken to the auditor’s report in reference to said claim, this appeal was taken.

The advertisement for bids for the original contract was for “Proposals for dredging in Newark Bay and Passaic River, N. J.,” and there were a number of specifications. Amongst them was one that “it is understood and agreed that the quantities given in these specifications are approximate only.” One of the “special conditions” was that the River and TIarbor Act, approved March 2, 1907, contains the following provision:

*468 “Improving channel in Newark Bay and Passaic River, New Jersey, in accordance with the report submitted in House Document Numbered' Four Hundred and Forty-one, Fifty-ninth Congress, second session, two hundred thousand dollars: Provided that the Secretary of War may enter into a contract or contracts for such materials and work as may be necessary for the prosecution of said work, to an amount not exceeding in the aggregate six hundred and fifty thousand dollars, to be appropriated for, from time to time, according to law, in addition to the amounts herein and heretofore appropriated.”

Under the head of “Description of Work” is the following:

“The work to be done under these specifications consists in dredging a channel as above authorized 16 feet in depth at mean low water through Newark Bay and Passaic River from Staten Island Sound to the Montclair and Greenwood lake Railroad bridge, a distance of 10.8 miles. The width of this channel to be 300 feet to the Nairn Linoleum Works, a distance of 9.7 miles; thence 200 feet in width 11 miles, to the Montclair and Greenwood Lake Railroad bridge.

“Depth, Side Slopes and Tides: Under the project of June 13, 1902, a channel is in progress 200 feet wide throughout the reach to be improved. This channel is to be 12 feet deep to the Nairn'Linoleum Works and 10 feet deep above that point, and of the 10.8 miles to be dredged, about 8 miles from Newark Bay up have been completed; and the entire channel will be completed under certain contracts now in force and in progress. There are no natural depths in the river in excess of those to be dredged under the project of 1902. The minimum depths in the river on either side of this channel are from 6 to 8 feet up to the vicinity of the Nairn Linoleum Works and about 4 feet above that locality.

*469 “The depth required is sixteen (16) feet at mean low water; an allowance of one (1) foot for overdepth in dredging will be made.”

In the contract it was provided:

“That in conformity with the advertisement and specifications hereunto attached, which form a part of this contract, the said Colonel D. W. Lockwood, Corps of Engineers, for and in behalf of the United States of America, and the said Midland Land and Improvement Company, do covenant and agree, to and with each other, as follows:

“That the said party of the second part shall furnish the necessary labor and plant, and dredge about four million, one hundred and seventy-seven thousand, one hundred and ten (4,177,110) cubic yards of material, scow measurement, in Newark Bay and Passaic River, N. J., and that the said party of the second part shall be paid therefor at the rate of sixteen and one-quarter (16%) cents per cubic yard, scow measurement, amounting to about $678,780.38 for all material which shall have been satisfactorily removed and disposed of.”

The agreement also contains the following provision in reference to a change or modification of the contract:

“If, at any time during the prosecution of the work, it be found advantageous or necessary to make any change or modification in the project, and this change or modification should involve such change in the specifications as to character and quantity, whether of labor or material, as would either increase or diminish the cost of the work, then such change or modification must be agreed upon in writing by the contracting parties, the agreement setting forth fully the reasons for such change, and giving clearly the quantities and prices of both material and labor this substituted, for those named in the original contract, and before taking effect must be approved by the Secre *470 tary of War: Provided, that no payment shall he made unless such supplemental or modified agreement was signed and approved before the obligation arising from such modification was incurred.”

The supplemental agreement was dated the 3rd of August, 1911. The recitals in it state asi reasons- for modifying, the contract of August 12, 1907, that since it was entered into’ requests have been made by interested parties

“for the removal of a shoal in the Passaic River on the south side of the present lines of the work now being done under said contract and in the vicinity of Lister’s Chemical Works, between the Pennsylvania freight bridge and the Jackson Street highway bridge,” and that in the River and Harbor Act, approved February 27, 1911, it is provided “that the project for the improvement of the Passaic River below the Montclair and Greenwood Lake Railroad bridge may, in the discretion of the Secretary of War, be so modified as to allow the widening of the channel of the river at bends wherever considered desirable in the interest of commerce and navigation, and provided also that no additional work shall be done under this authority which will increase the total cost of the project * * * under which project the work embraced in the present contract dated August 12, 1907, is being prosecuted”; and that the Midland Land and Improvement Company “has offered to do the additional amount of dredging required to widen the channel of the Passaic River in the vicinity of Lister’s Chemical Works, and at any other bends in the river where considered desirable in the interest of commerce and navigation, at the same rate provided for in said contract of August 12, 1907, * * * How, therefore, the said contract is on this 3rd day of August, 1911, hereby modified in the following particulars, but in no others:

“That the said contractor,- the Midland Land and Improvement Company, shall do the additional dredging required to widen the channel in the Passaic River *471 on the south side of the present lines of the work now being done under said contract in the vicinity of Lister’s Chemical Works, between the Pennsylvania Railroad freight bridge and the Jackson Street highway bridge, and at any other bends in the river below the Montclair and Greenwood Lake Railroad bridge where considered desirable in the interest of commerce and navigation and where required by the contracting officer, and to lines to be indicated by the contracting officer in each case: Provided, that the total quantity of material to be removed under the contract dated August 12, 1907, above referred to, and this supplemental agreement, shall not exceed the quantity stated in said contract (4,177,110 cubic yards) by more than 10 per cent.

“That the said contractor shall be paid therefor at the rate of sixteen and one-quarter cents (16%) per cubic yard, scow measurement, for all material that shall have been satisfactorily removed and disposed of.”

It is shown by a report, from the District Engineer Officer to the Chief of Engineers that the contract, including the supplemental contract, was- annulled by the Chief of Engineers on March 12, 1913. At that time the total yardage removed by the Midland Company under the original contract was 3,021,681 and under the supplemental contract. 131,951, being a total of 3,153,632 yards. Tinder the contract of October 10, 1913, Eugene Breymann agreed to “do. all the dredging remaining to be done to complete the improvement in Passaic River, N. J., estimated at 1,155,429 cubic yarda of material, based on scow' measurement,” but Breymann dredged, according to the statement in the claim of the United States, 1,328,257 cubic yards. Breymann completed the balance of the work under bis contract on November 30, 1915, and the United States attorney, with leave of the court, filed a supplemental statement of its claim as follows:

*472 “Cost to remove 1,328,257 yards under second contract at 26%c. per yard........$356,969.05

Amount it would have cost to remove that at 16% c. . .'........................ 215,841.76

Excess of cost..................... $141,127.29

Cost of advertising and printing in reletting second contract.................. 42.05

Total excess cost...’................$141,169.34

Forfeited retained percentage amounting, to.................................. 33,998.17

Net loss to U. S....................$107,171.17.”

Another statement made by the auditor of the War Department showing the Midland Company’s account may be thus summarized:

“Net payment to that company............$478,467.05

Net payments to Breymann............. 356,969.05

Advertising and printing................ 42.05

Total debits............ $835,478.15

Material dredged prior to de- ■ fault, 3,153,362 cubic yards at contract price, 16%c. per • ciibic yard................$512,465.20

Material dredged by Breymann in completing the work, 1,-328,257 cubic yards at 16%c. per cubic yard............. 215,841.76

- 728,306.96

Amount due U. S..................$107,171.19.

The bond of the United Surety Company refers to the contract of August 12th, 1907, and the condition was:

*473 “Now, therefore, if the above bounden Midland Land and Improvement Company shall and will, in all respects duly and fully observe and perforin all and singular the covenants, conditions, and agreements in and by the said contract agreed and covenanted by said Midland Land and Improvement Company to he observed and performed according to the true intent and meaning of the said contract, and as well during any period of extension of said contract that may be granted on the part of the United States as during the original term of the same,” etc.

That contract was for about 4,177,110 cubic yards:, while the supplemental contract provided that the total amount, of material to be removed should not exceed the above amount by more than ten per cent. The Midland Company is charged in the account with 4,481,899 cubic yards, being 304,779 more than the amount named in the original agreement. It is contended by the attorneys for the appellant that there was no actual difference as to the amount between the original and the supplemental contract, as ten per cent, is the- customary allowance, long recognized by the Comptroller of the Treasury and contractors on such work as: proper margins for variations. The only witness examined on that point answered by saying that that was explained best by a copy of a, letter from the office of the: Chief of Engineers, dated September 24, 1898. It is said in that letter that the term “more or less” is “not to be considered as authorizing any material change in the approximate quantities: given,” and again: “ ‘more or less’ is considered to bo introduced to allow for errors in estimates and not to cover except where otherwise specially provided an increase or decrease to exceed ten per cent, of approximate quantities on which bid is made,” but the writer went on to sa,y:

“The approximate quantities named in a bid must have an important bearing on the price submitted, and to change them after making contracts is a radical change of the terms of contracts not permitted by the *474 law, and in many cases unjust to other bidders. If new conditions require without question radical changes in quantities or other essential elements in the terms of a contract, such changes must be provided for by supplemental contracts. Supplemental contracts are not considered desirable and will be recommended for approval only in cases of most evident necessity,” etc.

Whether or not “more or less” and “about” are to be construed in the same way, we need not discuss, but in Baltimore Perm. Bldg. Soc. v. Smith, 54 Md. 187, this Court held, in reference to land, that in an expression of “about 65 acres” the word “about” “imports that the actual quantity was a near approximation to that mentioned, that is to say, within a fraction of an acre, or perhaps it might cover a discrepancy of one or two acres.”

Of course we realize that it would be extremely difficult, if not impossible, to do more than these specifications did, where it is said that the quantities given “are approximate only,” but by the original contract the Midland Company agreed to dredge “about 4,177,110” cubic yards, and, if the letter above referred to as to> the ten per cent-, was to govern, then the Midland Company would have been entitled to a decrease, not exceeding ten per cent., if less than the 4,177,110 cubic yards were included in the description of the space to be dredged, given in the specifications. Of course it could not have been required under1 the original contract to- have dredged more cubic yards than were included in the spaces given in the specifications. But by the new contract it undertook to do additional dredging required to widen the channel in the vicinity of Lister's Chemical Works and at any other bends in the river below the bridge “provided that the total quantity of material to be removed under the contract dated August 12, 1907, and this supplemental agreement shall not exceed the quantity in said contract (4,177,110 cubic yards! by more than ten per cent.” The supplemental agreement, therefore, not only did not relieve it of anything required by *475 the original contract, hut added to' it, as it was thereby hound to all it had originally agreed to do, plus the additional dredging required by the supplemental contract.

It is not very clear as to what number of cubic yards were included in the dredging done under the first contract of the Midland Company. It is shown that the Midlaiid Company dredged 3,153,632 and that Breymann completed the con.irads of the Midland Company by dredging 1,328,257 cubic yards — the 'two amounting to 4,481,889. It is not shown how much, if any, of those dredged by Breymann was outside of the original contract, hut we know that 131,951 cubic-yards credited to tbe Midland Company were outside of the original contract. Therefore, it only took 4,349,938 to completo the original contract, even if we assume that all that Breymann did was within the bounds of that contract (which is by no means certain). If the Midland Company liad dredged the 131,951 yards under the original contract it would have made a difference of about $14,000 and of course the difference is still greater if any part of what was paid to Breymann was for work outside of the limits of the original contract.

' The Midland Company is charged with the difference between what it agreed to1 do1 the dredging for (BP/qc), and what was paid Breymann (26%e) and hence if the supplemental contract, had not been made, and the Midland Company had done the amount of work on the original contract which it. did on the supplemental contract, the liability of the United Surety Company would have been that much less. The appellant claims that, as it gave the Midland Company credit for the 131,951, which it said was easier work, the Midland Company was benefited to that extent and not injured, but if the surety company could not without its consent he made responsible under its bonds for anything outside of the contract of 1907, it would seem clear that the supplemental contract, did actually increase its. liability to that extent at least.

*476 As the total dredging under the contract of 1907 only amounted to 4,’349,938 cubic yards, and the supplemental contract required the Midland Company to dredge 4,594,821 yards, if demanded, its liability was increased by the latter to the extent of 244,883 cubic yards, even under the appellants’ claim .that the increase up- to- ten per cent, was authorized under the original contract, for it could not be contended that the Midland Company was under that contract required to do more than what was necessary to complete what it then undertook to do-. The price contracted for by the Midland Company was evidently a very low one, as it was much less than the estimate of the government and very much less than Breymami’s contract, who was the lowest bidder when it was .given to him.

We have thus far spoken more particularly of the number •of - cubic yards named in the original contract, but there is much force in the position, taken by the appellees, that the contract was really simply to dredge a defined space in Newark Bay and P’assaic River from Staten Island Sound to the Montclair and Greenwood Lake Railroad bridge, a distance of 10.8 miles — the width and depth of the channel being given in feet and the distance in miles. The specifications provided that “if it is found that any material has been dredged from any point below or outside the limits given for work, unless authorized by the engineer, the amount of such material shall be deducted from the total amount dredged before final acceptance of the work.” In the letter of the District Engineer to the Chief Engineer of October 5, 1915, as to the quantity of material to be dredged under the contract with Breymann and locality of dredging yet to be done, it was said that the intention of making the original contract with the Midland Company was that dredging should be done from the 16-foot contour in Newark Bay to the Montclair and Greenwood Railroad Bridge. “The yardage- covered by the contract was the estimated quantity to be removed to- give a channel of project, dimensions between the points mentioned.”

*477 So the Midland Company was confined to- the limits given, and if it dredged as agreed within those; limits it could not have been required to dredge any mo-re, even if the amount was much less than the number of cubic yards named in the contract, but the supplemental contract is different. The representatives of the government recognized the great change made by the- latte-r. We have seen above- what the Chief Engineer said as to when such contracts should be- made. — “if new conditions require without question, radical changes in quantities or other essential elements in the terms of a contract.” In the statement, of account made by the Auditor of the War Department and filed in this ease it is said: “As the provisions of the; supplemental contract relative to the quantity of material to be removed under the original and supplemental contracts supersede the provisions in the original contract,” etc. Provision tvas made by Act of Congress to modify the project, a, contract as formal as. the original o-ne was entered into, the consent of the Bankers’ Surety Company waa obtained for the supplemental contract, and everything was- done apparently except obtaining the consent of the United S-urety Company or its receivers. The Bankers’ Surety Company ottered a. new bond and supposed it wo-uld be accepted. Other things might be referred to-, but we can bave no doubt that the supplemental contract did impose additional and material burden on the surety company, if it is. held liable.

Nor do we think that paragraph six of the contract, quoted above1, can properly be construed to mean that a surely o-n a bond for the fulfillment, of such a contract as that of the1 Midland Company of 1907 continued liable under such a supplemental contract as this. Its officers, of course, knew that the parties might make a contract- to- change or modify the original one, hut it cannot he said that it could have been conatemplated by the parties or the surety when it entered into the bond in 1907 that it would still be liable tinder a contract which did in effect, supersede the one it undertook the performance of, unless it. consented to- it. If the parties could make a contract under paragraph s-ix for additional dredging *478 amounting' to one, two or three hundred thousand cubic yards and hind the surety on the original bond for its performance, why could they not do so for as many millions ? This supplemental contract was made four years after the original, when the bond was given. A surety might he satisfied to go on the bond of a contractor for work to he done by him at a certain place, of a fixed quantity and within a definite space in 1907, hut not for additional work outside of that place or space undertaken in 1911. A contractor might he so situated that the surety would believe he could perform the work undertaken by him in 1907, hut would not he satisfied that he could do the additional work undertaken in 1911. If a surety is to he held hound under a new contract by reason of paragraph six for an increased amount of work at places outside of those defined by the original contract, simply because tbe parties made a supplemental contract, why could they not change or modify the original one, without the consent of the surety, by reducing the price per cubic yard ? A new or supplemental contract providing for additional dredging a.t the same price, made four years after tbe original one, might well he equivalent to agreeing to a reduction of price, for the experience of late years has shown that while a contract at one price at one time would he regarded asi a fair one, such a contract a few years later might he disastrous and impossible of performance without great loss, if not ruin.

While we fully realize that surety companies, which are supposed to be paid for the risks they assume, and practically fix their own prices, should not be permitted to> escape liability on such purely technical grounds as sureties once could do, and that the time has come when the old rule of stñctissvmi juris must be very much modified, we cannot feel justified in holding a surety responsible for what we regard as a materially different contract from the one it undertook to be responsible for, unless it has more clearly made itself responsible for the new contract than can reasonably be claimed in this case. As the United Surety Company was in the hands of receivers when this supplemental contract was en *479 tered into,, it may not liave been able to give its consent to the new contract, but the court could have authorized the. receivers to consent to it, or it could have declined to permit them to do so, asi it deemed best and proper, and in the latter event the government could have either required other security, as was in fact tendered it, or could have declined to give the Midland Company the new contract.

The case of Wehr v. Ger. Evan. Luth. Con., 47 Md. 177, is one relied on by the appellant. Judge Alvev repeated the well known general rule as to sureties, that “it is perfectly well settled that a surety has the right to stand upon the very terms of his contract; and if such contract he altered or varied in any material point, without his consent., so as to1 constitute a new agreement, varying substantially from the original, he is no longer bound” — citing, amongst other cases, Miller v. Stewart, 9 Wheat. 680, but the court found that the alterations, additions, etc., there relied on as a defense were within the limits prescribed by the contract which the surety had agreed to, and held ho had no right to complain. In this case paragraph six of the contract provides that such a change or modification as is involved here must be made by such an agreement as is therein provided for. It was in effect a new agreement executed with all the formalities of the original onei, and we are satisfied that the consent of the surety was contemplated in order to make it liable under the new contract,.

In Amer. Bonding Co. v. U. S., 167 Fed. 910, there was a contract for dredging work which required the contractor to deposit the dredged material in a specified place and provided that ho could not be paid for any material elsewhere. The contract was annulled under a provision in it, and a new contract was entered into'. The original contractor and his surety were sued. It was held that, as against the surety, the contract itself provided the only mea,sure of liability, and that the surety was not liable when the contract subsequently let to another contractor requiring the dredged material to1 he dumped in a different place was neither agreed to between *480 the parties to the original contract nor assented to by the surety.

Paragraph six in that contract was the same as the one here. The contractor, Axman, did not dredge and remove the minimum cubic yards required, and he was notified that the contract was annulled and the same day notice was given to the surety aud a contract entered into with the North American Dredging Company “to do- the work left undone” by Axman. The court, after referring to paragraph six said: “No such agreement was ever entered into by the original contracting parties in writing or otherwise, and therefore no provision or agreement for a change or modification of the contract ever went into effect; hut this provision of the contact supports the contention of the plaintiff in error, that in completing! the contact and in doing the work Axman left undone, there could he no departure from the terms of the original contact without such an agreement, and, further, that the surety could not be held, liable unless it also agreed in writing to the change” (italics ours). The court referred at some length to the case of United States v. Freel, 186 U. S. 309, which is one of the leading cases in matters of this kind and it was there held that the surety was not liable. The court in the American Bonding Co. case, in referring to-the Freel case, said: “It will he observed further that the contactor was to he compensated for the additional expense in making the change, so that the surety was in no way injured by the change in the contract. The surely was, nevertheless, held discharged from liability. This case is a sufficient answer to the contention of the United States in the* present case, that the change in the contract was not material to the plaintiff in error.” The case of Axman v. U. S., 167 Fed. 922, was submitted to the Circuit Court of Appeals upon the record and brief of the case of the American Bonding Co. and it was reversed. Those two cases were affirmed in U. S. v. Axman, 234 U. S. 36, where the case of U. S. v. McMullen, 222 U. S. 460, was considered and distinguished. See also Tidewater Oil Co. v. Globe Indemnity Co., 238 Fed. *481 157, where Judge Hough referred, to the Freel case and said of it: “Later decisions have not affected the authority of that decision. It was specifically approved in Guaranty Co. v. Pressed Brick Co., 191 U. S. 416. In United States v. McMullen, 222 U. S. 460, Holmes, J., pointed out that sureties on a bond have no right to insist upon a “sacrosanct prohibition of change * * * The law has no objection to (change) if (sureties) assent. Whether they have done so or not is simply a question of construction and good sense, taking words and circumstances into account.”

Without citing other authorities, it follows from wha,t we have said that the decree overruling exceptions of the United States must be affirmed.

Decree affirmed.