“Dr. Gray is more associated with the study and the room next it, but I recall him there (in the parlor) also, especially in the visit of which you wrote, made when Mr. John Carey was with you. He and the doctor held one Sunday a long discussion on the Ten Commandments as binding upon Christians. Mr. Carey argued that their only claim upon our obedience consisted in their having been re-ordained (indorsed as it were) by the church,--whether that meant the Holy Catholic or simply the Anglican Church was not decided, as I remember. Dr. Gray combated this extreme church view warmly and cleverly. Both were pugnacious amiably, as in their botanical fights. Both were excited, and the doctor showed his excitement in his characteristically self-forgetful way, by moving or jumping nervously about the room, sitting on the floor, lying down flat, but laughing and sending sparks out of his eyes, and plying his arguments and making his witty thrusts all the while. I enjoyed it very much, scarcely observing the odd positions any more than the doctor did. I had seen him so conduct himself before.” It may be added to this that Dr. Gray was noticeable throughout his life for his alertness. In the street he was usually on a half run, for he never allowed himself quite time enough to reach his destination leisurely. When traveling by coach and climbing a hill he would sometimes alarm his fellow-travellers by suddenly disappearing through a window in his eagerness to secure some plant he had spied; his haste would not suffer him to open a door. As his motions were quick, so that he seemed always ready for a spring, so he found instant relaxation by throwing himself flat on the floor when tired, to rest, like a child. His physical characteristics expressed something of his mental qualities. He was quick and impetuous in temper, but his excitement was short-lived, and his prevailing spirit was one of apparently inexhaustible good-nature. He was the cheeriest of household companions; rarely was he depressed, only indeed when greatly fagged with some tremendous pressure of work or some worrying trouble difficult to settle; he was exceedingly hopeful, and always carried with him a happy assurance that everything was going on well in his absence; withal, he was fearless in all adventure, never willing to allow there had been any danger when it had passed! He was fond of arguing, but no partisan, so that however earnest and dogmatic be might seem, the moment the discussion was over there was no trace of bitterness or vexation left. He was a clear and close reasoner himself, and thus impatient of defective reasoning or a confused statement in others. He was quick, too, in turning his opponents’ weapons against them; sometimes he would escape from a dilemma in a merry, plausible form, but in serious argument he always insisted upon downright sincerity. TO W. J. HOOKER. April 1, 1844.