PIONEERS OF SCIENCE IN AMERICA. 



forgotten the date. He became curator of the museum at 

 Havre, and then, after some years, died and was buried there. 

 The exact date of his death those there have also forgotten. 



"When he came to New Harmony during the social experi- 

 ment he was directly from the West Indies, and brought a 

 young lad and a child, both of whom subsequently married, 

 but both are now dead. It was from their relatives that I ex- 

 pected to get dates, but failed. 



" When the ' Preliminary Society ' (at New Harmony) re- 

 solved itself into the (i) Educational, (2) Agricultural, and (3) 

 Commercial Societies, Mr. Lesueur joined the first, and I have 

 in my box of valuable papers a deed of a lot (for the purpose 

 of erecting a foundry), executed by the Educational Society, 

 and signed by my father-in-law, Mr. Neef, and his family, Drs. 

 Troost, C. A. Lesueur, William Phiquepal, and a number of 

 others. 



" Some of the relatives of those who came with him think 

 there was a notice in some public journal of his death, etc., 

 but I never saw it. I just recall two incidents : 



"When we were together, going sketching, I think, we 

 found and killed a large blacksnake, uncommonly distended. 

 Mr. Lesueur, when we reached home, used a large syringe and 

 injected water into the stomach, from which he then stripped 

 four young rabbits. Another time we obtained a female opos- 

 sum, and he very deftly dissected it and showed me the young 

 adhering to the small teats in the pouch or marsupium." 



Lesueur's scientific work was done chiefly in America, and 

 it ranked with the best of its kind at the time. His most im- 

 portant memoir was a monograph of the suckers, a group of 

 American fishes constituting his genus Catostomus, each species 

 being represented by a clever and accurate figure drawing 

 and engraving being both by the hand of Lesueur. In 1878 

 Prof. David Starr Jordan spoke of this paper as " an excellent 

 one, comparing favourably with most that has since been writ- 

 ten on the group." Other valuable papers were on certain 

 blennies, rays, and flying fishes, accounts of new species from 

 the West Indies, and descriptions of tortoises and other rep- 

 tiles. 



The Royal Society's Catalogue of Scientific Papers contains 

 the titles of nine papers of which Lesueur was joint author 

 with Fran9ois Peron. These appeared in 1809 and 1810 in 



