Among the Members of the then General Assembly of Pennsylvania, were John Dickinson, William Allen, George Ross, Edward Biddle, Charles Humphreys, John Sellers, John and Israel Jacobs, and James Wright, besides the very respectable characters named in the foregoing resolution and order of the House.[[163]]

The various agitations which the public mind underwent in this country, in the succeeding four years, in consequence of its disputes with the parent state, and until the commencement of hostilities between the two countries, seem to place Mr. Rittenhouse more out of view for some time, with respect to any public employments. Then, all classes of people appeared to have become Politicians. The interests of Literature were neglected; Science, abstracted from Politics, was little cultivated; and all other considerations were, in general, apparently absorbed in the views which the American people entertained of their public affairs, and in the prosecution of measures, adapted either for the obtaining a redress of the then existing grievances, or to meet the possible contingency of an adverse event. There was, in fact, for about four years preceding the year 1775, a great interruption, sometimes an almost total suspension, in the American colonies of Great Britain, of all pursuits, except the ordinary and indispensable ones of Industry and Commerce. Yet about the commencement of this period, (viz. in the summer of 1771,) Mr. Rittenhouse was engaged with Mr. Kinnersley and some other gentlemen, several days successively, in making a series of experiments at Philadelphia, on the Gymnotus Electricus, or Electric Eel; for the purpose of ascertaining the nature of the faculty by which this fish is enabled, on being touched, to impart a shock, very similar in sensation to that produced by the electric fluid. An account of these experiments was long afterwards communicated by Mr. Rittenhouse to Professor Barton of Philadelphia, and will be found in the first volume of his Philadelphia Medical and Physical Journal.

It was during this interval that Mr. Rittenhouse experienced a long course of exemption from any very conspicuous public employments, which could interfere with his favourite studies; an interval, in which he was disposed to have enjoyed a kind of dignified leisure, amidst the tranquillity of domestic employments; so far as the existing state of things in the political world would permit a man, solicitous for his country’s happiness, to participate in any sort of gratification, that might be deemed incompatible with a due degree of interest in the public weal. He possessed too enlightened and patriotic a mind not to be keenly sensible of the delicate, as well as alarming situation, in which his country was then placed. But nature had fitted him for the quiet station of domestic life, and the delightful pursuits of natural science; rather than for the bustle of official situation, and for those speculative projects in politics, wherein specious theories often terminate in the most deceptive results.

He had been investigating principles founded in Truth, from his childhood; this object was always near to his heart; and he set little value on any thing that did not lead to its attainment. This predominating disposition of his mind is indeed plainly evinced by a single sentence, contained in a letter which he addressed to Mr. Barton, so early as the 16th of February, 1764. Having had a personal interview with an eminent and worthy clerical gentleman, well disposed to befriend him, but who was more a metaphysical than a natural philosopher, he thus expressed himself on the occasion: “I had a good deal of conversation with Mr. ******, not, perhaps, greatly to the satisfaction of either of us; for he appears to me to be a Mystical Philosopher, and you know I care not a farthing for any thing but sober Certainty in Philosophy.”

Fifteen years elapsed between the publication of the first and second volumes of the Transactions of the American Philosophical Society; and there is an interval of about ten years between the latest of Mr. Rittenhouse’s communications, contained in the first volume, and the earliest in the second. These facts, alone, are sufficient to demonstrate to what a state of depression all philosophical pursuits had sunk, not only during the war of the revolution, but for some years preceding it. It is true, that long before the close of that war, an attempt was made by a few individuals to revive the long interrupted meetings of the Society, at the stated times of their convening; and that, for this purpose, a Charter of Incorporation was granted to the members of that Institution, by an act of the Pennsylvania Legislature, passed the 15th of March 1780: but that act itself contains an acknowledgment of the truth, that, “The Society, after having been long interrupted in their laudable pursuits by the calamities of war and the distresses of our country,” had “found means to revive their design,”—“in hopes of being able to prosecute the same with their former success.”

But, at the date of Mr. Rittenhouse’s letter to Mr. Barton, of the 3d of February, 1772,[[164]] he appears to have been chiefly engaged in his domestic concerns and professional employment. He remained, even then, very sensible of the loss he had sustained in the death of his wife: and his reflections on that circumstance, together with the serious aspect of the times and his frequent indisposition, depressed his mind, occasionally, much below its natural state of cheerfulness. It must have been in one of these hours of mental gloom, that he penned the succeeding passage, in the letter last referred to.

“I do not doubt, my dear Brother, but that you condemn me, as usual, for not writing: but much writing ill suits a Mechanic. After the comfortless toil of the day, when evening comes, I am glad to sooth my mind with a favourite poet, or some other book of amusement. That you may not be disappointed, I would have you to expect nothing of me, in future. I no longer feel any inducement to exert myself: every thing—even life itself—is insipid. Yet you will be told, I suppose, that I am paying my addresses to some one:—I sincerely wish sad experience may never teach you to reconcile these contradictions.”

“It is still my intention to go to England, as soon as my business will permit. I have had my health as well as usual, until the last fortnight; but have now a violent cold.”

The tenor of this quotation manifests, that our Philosopher did not, at that time, enjoy his accustomed serenity of mind. Some of the causes of his depression of spirits appeared to his friend and correspondent to be of such a nature, as might, perhaps, be removed by a little pleasantry. Under this impression, Mr. Barton, in his answer, thus rallied him:

“I am extremely sorry,”—said this gentleman, after replying to some other parts of Mr. Rittenhouse’s letter—“to find your Ambition so low, as to render you indifferent to that Fame to which you might justly aspire; and your Spirits so sunk, as to put you out of humour with the world. My dear Brother, what can this be owing to? You have, indeed, received a severe blow: but I am sure that your Philosophy has taught you, with the Poet,—that,