Dr. Thomas Walmsley. 167 



lived ; he drew up a very ample account of the remitting 

 fever of 1804, in connection with a curious Calendarium 

 Florae^ which the writer of these pages has seen ; and, 

 in the latter months of his life, he was engaged in a se- 

 ries of experiments relative to the nature of the light of 

 the North- American species of Lampyris, and other 

 subjects of the natural history of these insects*. These 

 papers he did not live to finish : but it is hoped that 

 parts of them are sufficiently corrected for the inspection 

 of the public eye. Perhaps, they may make their ap- 

 pearance in future numbers of this Journal. 



The writer of this feeble tribute, long and intimately 

 acquainted with Dr. Walmsley, deplores the death of 

 this young man as one of the most ingenious and learned 

 of his pupils, and as one of the warmest and most disin- 

 terested of his friends. Reflecting on the richness of his 

 talents ; estimating his scientific attainments, in connec- 

 tion with his early age ; and, above all, with a never to 

 be effaced recollection of his uncorrupted virtues, he 

 considers his death as a loss not merely to himself, not 

 merely to the large circle of his friends, but to the whole 

 community, and to the interests of science every where, 



* These are the insects best known, in the United States, by the 

 names of" Fire-flies," and " Lightning-Bugs " The Glow-worm 

 of the English is one of them. The natural history of these in- 

 sects has excited mucii of the attention of philosophers, especially 

 (of late) that of the ingenious Mr. Carradori, of Pavia. 



