But a still greater source of perplexity, and of ultimate mischief, was the indefinable nature of the powers, with which the commandant of the city was invested. How far did the military authority extend? What objects did it embrace, and in what particulars was it to take cognizance of the civil rights, condition, and acts of the people? Where was the line to be drawn between the control of the military commander, and that of the government of Pennsylvania, whose laws and orders the citizens were bound to obey? These questions could not be answered by precedent or rule; and the practical difficulties could be avoided only by a degree of prudence, which was not to be expected from the habits and temperament of Arnold.
The instructions to him from the Commander-in-chief were expressed in general terms, and the mode of discharging the duties of his new appointment was left mainly to his own discretion. By a resolve of Congress, the removal, transfer, and sale of all goods in the city were to be prevented, till a joint committee of that body and of the Council of Pennsylvania should ascertain whether any of the property belonged to the King of Great Britain or to his subjects. With the design of carrying this resolve into effect, Arnold, as soon as he entered the city, issued a proclamation prohibiting the sale of goods until the inquiry should be made according to the order of Congress. Although this measure was advised by the principal persons of the city, and was indeed necessary for the strict discharge of his duty, yet it appeared so arbitrary in its principles, and bore upon so large a portion of the community, that it was unpopular, and brought some degree of odium on its immediate author. It infused a prejudice and dislike into the minds of the people, which neither his disposition, the weight of his personal character, nor his manners, would be likely to remove. It was, to say the least, an unpropitious beginning of his command, and led the way to the unfortunate train of events that followed.
Arnold had been a month at Philadelphia, when he conceived the project of quitting the army, and entering into the naval service.
"My wounds," said he, in writing to General Washington, "are in a fair way, and less painful than usual, though there is little prospect of my being able to take the field for a considerable time; which consideration, together with that of being obliged entirely to neglect my private affairs since I have been in the service, has induced me to wish to retire from public business, unless an offer, which my friends have mentioned, should be made to me of the command of the navy, to which my being wounded would not be so great an objection as it would to remaining in the army. I must beg leave to request your sentiments respecting a command in the navy. I am sensible of my inability, and of the great hazard and fatigue attending the office, and that I should enjoy much greater happiness in a retired life; but still my wishes to serve my country have a greater weight with me, than domestic happiness or ease."
General Washington's reply was brief and cautious. He declined expressing an opinion or giving advice, saying that his ignorance of naval concerns rendered him an incompetent judge.
Whether there was a serious intention in any quarter to appoint Arnold to the command of the navy, or whether the idea originated with himself, and he wished to obtain the countenance of Washington in aid of his object, it would not be easy at this time to ascertain. The above extract from his own letter is probably the only record relative to the subject that can be found. His pecuniary embarrassments were now beginning to press upon him, at the moment when his extravagant habits of living made new demands, and his fondness for display was pampered by the adventitious consequence to which he was raised as commandant of Philadelphia. He soon discovered, that his means bore no proportion to his wants, and that his situation afforded him no facilities to increase the former, while it presented many temptations to multiply the latter. It may be presumed, therefore, that motives of gain, rather than of patriotism or honorable ambition, induced him to think of deserting the theatre of action, in which he had acquired so remarkable a celebrity, and of commencing a new career in another department, where his experience was limited, and his professional prospects were doubtful. In the command of the navy his ruling passion would be flattered with the alluring hope of profitable captures. This conjecture is strengthened by the fact, that he afterwards formed a resolution to take the command of a privateer, although he abandoned the scheme before he attempted to carry it into effect.
Amidst so much that was mercenary, and so many derelictions of principle and faults of conduct, it is refreshing to discover some alleviating incidents. The lively interest expressed by Arnold in the orphan children of the lamented General Warren, who fell at Bunker's Hill, and the substantial tokens of kindness, which from time to time he rendered to them, would in any other person be regarded as noble proofs of disinterested benevolence and goodness of heart. Let them be placed in the scale, and allowed the weight they deserve. In what relation these two persons had stood to each other before the war is not known, but it is evident they were such as to inspire grateful recollections in the breast of Arnold.
A name, made illustrious by patriotic ardor in the cause of his country and the sacrifice of his life on the altar of liberty, was the only inheritance left by Warren to four young children. Through the instrumentality of Samuel Adams, a resolve of Congress was passed, that the eldest son should be educated at the expense of the United States. It was presumed that the State of Massachusetts would provide for the other children. This latter expectation, however, was disappointed. The three younger children were put under the charge of Miss Mercy Scollay, of Boston, to whom Arnold wrote in the following terms, a few days after he took the command at Philadelphia.
"About three months ago I was informed," said he, "that my late worthy friend General Warren left his affairs unsettled, and that, after paying his debts, a very small matter, if any thing, would remain for the education of his children, who, to my great surprise, I find have been entirely neglected by the State. Permit me to beg your continuing your care of the daughter, and that you will at present take charge of the education of the son. I make no doubt that his relations will consent that he shall be under your care. My intention is to use my interest with Congress to provide for the family. If they decline it, I make no doubt of a handsome collection by private subscription. At all events, I will provide for them in a manner suitable to their birth, and the grateful sentiments I shall ever feel for the memory of my friend. I have sent to you by Mr. Hancock five hundred dollars for the present. I wish you to have Richard clothed handsomely, and sent to the best school in Boston. Any expense you are at, please call on me for, and it shall be paid with thanks."
These generous sentiments were steadily maintained, and occasional supplies of money were forwarded according to the promise in this letter. He obtained private subscriptions, but apparently to no great amount. He made an application to Congress, which was referred to a committee, who reported, that the three younger children of General Warren should be maintained at the public expense in a manner suitable to their rank in life, till they should come of age, and at that time one thousand pounds should be given to each as a portion. If this report was ever called up, it did not receive the sanction of Congress. Arnold persevered, however, in his solicitation, and at last the point was carried to allow for the support of these children the half-pay of a major-general from the date of their father's death, till the youngest should be of age.