398 CYRUS MOORS WARREN. 



which he did frequently with signal success. His partners had missed 

 him not a little during the term of his highest scientific activity ; 

 and afterwards, in a period of great commercial depression, they were 

 only too anxious to be helped by " so good a man of business." It 

 must be admitted that his associates had good cause to wish to have 

 him always with them, for he was a conspicuously able and indomi- 

 table man, born to command success. To him the failure of an under- 

 taking or loss of fortune meant little more than a new incentive to 

 energy and to labor ; and the customary and to-be-expected result of 

 his activity was the recovery of all that had been lost, and more. 

 Though ordinarily mild of manner and extremely good-natured, this 

 determination of character was plainly written on his face ; and it 

 was remarked by an assistant in his Boston laboratory, in the winter 

 of 1863, that Warren's mouth must have been copied for making up 

 the photographs of General Grant, which were in that year beginning 

 to be freely displayed. 



As a matter of course, no man could long lead a life of such un- 

 tiring activity. There was no apparent slackening of his mental 

 powers even to the end, but his physical ability to labor sensibly dimin- 

 ished after the very severe strain and long-continued anxiety to which 

 he was subjected during the period of commercial depression which 

 succeeded the panic of 1873. As his physical powers diminished, 

 he suffered frequently from severe nervous headaches, which were 

 manifestly symptomatic of fatigue. But " it took much to discourage 

 him," and to the last he kept himself accurately informed upon all 

 matters of importance relating to a very large business, and did much 

 of the thinking of the firm, and all of its most important correspond- 

 ence. His partners and he himself knew well that he understood 

 their affairs better than any one else, and could better than either of 

 them attend to the business. The burden upon him was much in- 

 creased in 1880 by the death of his brother, Herbert M. Warren, 

 who was lost on the " Narragansett," in Long Island Sound. In 1888, 

 when much enfeebled physically by overwork, he had a paralytic stroke, 

 from which he never recovered. Two winters passed at Nassau, and 

 a couple of summers spent in absolute rest in the Adirondacks and 

 in Vermont, failed to restore him, and he died quietly in the summer 

 of 1891. 



It would be difficult to write in any way of Warren's scientific career, 

 without making some mention of his business interests. For that 

 matter, many of the results of his scientific labors are upon record, to 

 be seen by every one, and it is instructive to consider in what respect 



