Plaintiff sued to recover tbe amount of two deposits aggregating $400, claimed by plaintiff to have been deposited in defendant’s bank October 2d and October 8,1916, which deposits appeared to have been entered in a passbook furnished to plaintiff by defendant in which plaintiff’s dealings with tbe bank were shown from June, 1914, to February 8, 1917, tbe items in dispute appearing on tbe passbook as follows: “10/2 $100 and 10/8 $300.” The plaintiff’s evidence tended to show that he had made the deposit, and that the defendant had refused, after demand, to pay the amount. The testimony for the bank tended to show that tbe deposits were not made and that no person authorized by tbe bank to receive deposits bad made the entries in the passbook.

Tbe defendant offered to introduce tbe ledger sheets of the book of original entry of tbe bank purporting to show tbe items of debit and credit between plaintiff and defendant during a series of months, including tbe dates of the items sued on, and also offered to show the system of the bank in handling and dealing with deposits made by its customers.

[1, 2] The point of contact between a depositor and the bank is with tbe receiving teller, and when the issue is as to whether or not a deposit was made, evidence tending to prove or to disprove that fact is admissible. The books of a bank are the best evidence it has of the course of dealing between it and its customers, and, when properly identified and corroborated as required by statute, in a suit between tbe bank and a depositor involving deposits made and received, are admissible in evidence to show the course of dealing between tbe parties; and while its books are not admissible ordinarily merely to prove a negative, where the course of dealing is shown to be regular and in due course they may be admissible to show that no credit entries were made on tbe dates claimed, as corroborating other testimony to that effect. Moreover the passbook of a bank is a part of tbe books of tbe bank, used in recording tbe items of deposit as between itself and its customer. This passbook in' tbe hands of the customer is prima facie evidence of the bank’s obligation as therein shown. If, then, the customer, in a suit against the bank, is entitled to introduce in evidence that part of the bank’s books showing tbe account in his possession, tbe bank is entitled to introduce that part of its books relating to tbe account kept by it and in its possession.

The system of bookkeeping used by tbe bank in its dealing with its customers on the days tbe plaintiff claims to have made the two deposits of $100 and $300 was admissible in evidence, not to prove a negative, but in *138 corroboration of the testimony of the receiving teller that no such deposits were in, fact made, and if this system disclosed such checks and balances as would have rendered the deposits claimed by plaintiff impossible or improbable, the transactions of the bank on those days, when properly identified by the various officers and bookkeepers of the bank, should have been admitted in substantiation of the testimony of the receiving teller that no such deposits were so made. In a case similar to the one at bar Mr. Justice Evans, speaking for the Supreme Court of Iowa, said:

“The defendant by its witnesses had a right to explain its method of business at that time, its method of bookkeeping, its blank forms, its plan of checks and balances, its consecutive numbering of its blank certificates of deposit before using the same, its ‘proof book,’ and whatever else entered into its method of business, so far as the receiving of moneys was concerned. If the system disclosed by it was such that a mistake could not be made without its appearing later in some of the checks, balances, or proof book, it was a proper fact for the consideration of the jury as tending to show afiirmatively, in some degree at least, that no deposit was made on the date named, except such as appeared upon the books.” Wagner v. Valley National Bank (Iowa) 118 N. W. 523.

The same rule is substantially announced in American Surety Co. v. Pauly, 72 Fed. 470-478, 18 C. C. A. 644; Ellsworth Coal Co. v. Quade, 28 Mo. App. 421. If not entirely analogous, the same principle is recognized in Shirley v. So. Ry. Co., 198 Ala. 102, 73 South. 430.

[3] It is always competent to prove expressions used by a witness tending to show feeling or bias towards the party against whom he is testifying.

[4] The witness Morris, having testified, “I have seen him [plaintiff] making figures as well as writing bill heads there at the store from time to time,” was qualified to testify that in his opinion the two entries in plaintiff’s passbook, to wit, “10/2 $100 and 10/8 $300,” were not in the handwriting of plaintiff. Moon. Adm’r v. Crowder, 72 Ala. 79; Helms v. State, 91 Ala. 99, 9 South. 193; Land Mtg. Ins. & Agcy. v. Preston, 119 Ala. 290, 24 South. 707; Richardson v. Stringfellow, 100 Ala. 416, 14 South. 283; Karr v. State, 106 Ala. 1, 17 South; 328; Strong v. Brewer, 17 Ala. 706. In all of the above cases such testimony is more or less discredited, but the question as to its weight and sufficiency is left for the jury to determine.

The rulings of the trial court were not in accord with the foregoing opinion, and for ■the errors pointed out the judgment is reversed and the cause is remanded.

Reversed and remanded.