delivered the opinion of the court.

Mrs. Taliaferro executed jointly with her son, Charles A. Taliaferro, a promissory note for $5,4=00 to the firm of Chaffe, Bro. & Son, of New Orleans, and secured payment of the same by a trust-deed upon her plantation, known as Spring Hill. The object of the transaction was to obtain advances of money and supplies from the New Orleans merchants to a business firm in Hazlehurst, of which her son was a member ; and as the amount which Chaffe, Bro. & Son might be willing to advance was uncertain at the time Mrs. Taliaferro signed the note, the amount to ■ be specified in it was left blank. She executed to her son-in-law, Calvit Roberts, a power of attorney to fill up the blank with such sum as he and Chaffe might agree upon. The firm of which her son was a member was at the time largeL indebted to Chaffe & Co., but this fact was unknown to her. Her son was also individually indebted to the New Orleans firm in the sum of $1,441, evidenced by a promissoiy note and secured by trust-deed upon his homestead, and Mrs. Taliaferro required, as a condition precedent to the execution of her own note and trust-deed, that this debt of her sou’s should be transferred tó her. This demand was by Roberts communicated to Chaffe, who readily assenting to it, the blank in the joint note of Mrs. Taliaferro and Charles A. Taliaferro was filled up with an amount ($5,400) sufficient to cover the advances desired and the added sum of $1,441, the amount of Charles A. Taliaferro’s individual note, which was to be transferred; and when, shortly afterwards, the new note was discounted, as it was originally contemplated that it should be, a sufficient amount of its proceeds to extinguish or purchase the $1,441 note was applied to that purpose. The latter note thus became the property of Mrs. *549Tali aferró, but remained in the hands of Chaffe, Bro. & Son. Subsequently, at the request of Charles A. Taliaferro, Chaffe, Bro. & Son satisfied the mortgage on his homestead by which this note was protected, and, the property being thereafter sold by Charles A. Taliaferro to an innocent purchaser, Mrs. Taliaferro has been unable to enforce a collection of this note, and as her son is insolvent it has proved a total loss to her. As this loss occurred through the joint act of her son and Chaffe & Co., the question presented is, how are the rights of the pai'ties affected thereby? Mrs. Taliaferro insists that she is wholly released from all liability upon her note for $5,400, while Chaffe, Bro. & Son insist that the utmost extent of her right is to be credited with the amount of the lost note. Mrs. Taliaferro’s claim is based upon the theory that the surrender and transfer to her of the note of $1,441 was made by her a condition precedent to the execution of the larger note and mortgage, without the doing of which she absolutely and positively refused, as she alleges, to go into the matter at all, and that, inasmuch as this condition was never complied with, no liability ever attached upon the note for $5,400.

Her anxiety to obtain the $1,441 note sprung, as she says, out of the fact that she already held an unsecured note of $1,700 against her son, and this prompted the desire to obtain the note which was secured on the homestead. We do not doubt that Mrs. Taliaferro is correct in the statement that she made the transfer of the $1,441 note a condition of her execution of the larger one, but we feel certain that she is mistaken as to the motives that prompted and the considerations that controlled the negotiation. She could not have expected Chaffe, Bro. & Son to have made her a present of the $1,441 note, or to have obtained it without paying for it; and as she furnished no money for its purchase, she must have expected that the amount of it would be embraced, as it was, in the new note'. Certainly this was the expectation and understanding of her son and son-in-law, and of Chaffe, Bro. & Son. The obtaining control of a mortgage on her son’s homestead, *550thereby shielding -him from being ejected by his creditors, might well be an object of desire on her part; but we fail to see how, apart from this, the fact that she already held a worthless note against him could make the wish to obtain a second one so strong as to prompt a refusal to aid him if this was not done. We think the truth undoubtedly is that she desired to control the homestead debt, and was unwilling to encumber her property for advances to her son unless she was permitted to do so; but she expected to obtain that control by embracing the amount of the old note in the new one. She had a right, which Chaffe & Co. always acknowledged, to have the evidences of that debt transferred to her, but she never called for such transfer, and she gave Chaffe no notice of dissatisfaction for many months after she had knowledge ot his cancellation of the mortgage, nor until she was called upon to pay her own note.

If Chaffe, when the negotiation was first proposed to him, had declined to transfer the homestead debt, preferring to retain it himself, and Roberts, in violation of Mrs. Taliaferro’s instructions, had nevertheless filled up arid delivered the note for further advauces, his act would not have been binding on her ; but as the arrangement desired by her was in effect carried out as originally contemplated, and there has been nothing more than a misdealing with a security belonging to her, the proper course is to charge Chaffe & Co. with the loss of that security. In settling the rights and liabilities of sureties, who are always favored by the courts, it is sometimes difficult to distinguish between such variations of their contracts as will discharge them wholly, and such misconduct towards them as will discharge pro tanto only; but we are satisfied that the facts of this case bring it within the latter class. The fact that there was no manual delivery or written assignment of the note of her son to Mrs. Taliaferro did not constitute a violation of the terms of the contract which her son-in-law, Roberts, was authorized to make for her. From the date of the application of a portion of the proceeds of the larger note to the *551smaller one, the latter was her property, which she could at any time have received upon demand. Her right to receive it was never asserted by her nor denied by Chaffe. It remained, therefore, as her property in Chaffe’s hands, and its subsequent destruction was in no sense an alteration of the original contract, but simply an impairment of securities belonging to her. The remedy is to be found, not in releasing her from all liability upon her contract, but by compelling Chaffe.to make good the loss sustained by his misconduct in satisfying the mortgage on the homestead.

Mrs. Taliaferro, in executing the note for $5,400, became the surety or guarantor for such advances as might thereafter be made to the firm of which her son was a member, as is clearty shown by the trust-deed given to protect it, and by the power of attorney authorizing Roberts to fill up the blank in it. The larger portion of the proceeds arising from its discount was by Chaffe & Co. applied, by the consent of Roberts and Charles A. Taliaferro, but without the knowledge of Mrs. Taliaferro, to the satisfaction of the former indebtedness due from Roberts & Taliaferro to the New Orleans firm.

This was a misapplication and perversion of Mrs. Taliaferro’s means, and not binding upon her, as was rightfully held by the chancellor ; but the point is not made by the pleadings. She rests her right to relief entirely upon the idea that there was a variation of the contract bjr the failure to assign to her the note for $1,441, and upon alleged illegal charges in Chaffe’s accounts against her son’s firm and failure to give proper credits upon the same. There is no allusion whatever to the fact that she was improperly held for past debts. If this occurred, as counsel suggests, because of ignorance of the fact that her money had been so applied, she should have amended her bill when the facts were disclosed, so as to have given Chaffe & Co. an opportunity, by cross-bill, to have sought a reformation of the writings, if the writings failed, as is suggested by opposing counsel, to express the true intention of the parties.

*552The decree will therefore be reversed and cause remanded, with leave to both parties to amend pleadings.

Cooper, J., having been of counsel in the case, took no part in this decision.