The defendant requested the Court to charge the jury as follows:--1. That the defendant does not in any manner stand as an insurer in relation to the business of his office, and is only held to ordinary diligence in the discharge of the duties of his office, and can only be made liable for losses occasioned by a want of such diligence, and that the burden of proof is upon the plaintiff, to establish the fact of the want of such diligence. 2. That in order to establish the fact of want of ordinary diligence, the plaintiff must show some particular act of negligence in relation to the letter in question, and that the loss was the direct consequence of the particular negligence proved. 3. That although there may have been official misconduct on the part of the defendant, yet unless it be shown that the plaintiff's loss was the result of such misconduct, he cannot recover. 4. That if the letter were by mistake delivered to the wrong person, stolen by a stranger, or embezzled by a clerk, the defendant is not liable, unless he has been negligent, and the loss was the direct consequence of his negligence. 5. That it is not sufficient, to entitle the plaintiff to recover, merely to show that a letter was received at the office, and that the person to whom it was directed has not received it. 6. That the post master is not liable for the negligence of his deputies, unless he is guilty of negligence in appointing wholly unsuitable persons. 7. That the defendant being a public officer, he would not be liable in an action of trover, unless, at the time the letter was called for, he had the letter in his possession or control, and withheld it, or had actually appropriated the letter, or money, to his own use.