LAMARCK THE ZOOLOGIST 197 
thing to Cuvier, yet he knew how to utilize the work 
in anatomy offered by Cuvier in making a natural 
classification. His failing eyesight, which obliged 
him latterly to trust to the eyes of others; his poverty 
and trials of various kinds, more than excuse the 
occasional slips which we find in some of the later 
volumes of the Anzmaux sans Vertcbres. These are 
rather of the character of typographical errors than 
faults of scheme or principle. 
“ The work of Lamarck is really the foundation of 
rational natural malacological classification; practi- 
cally all that came before his time was artificial in 
comparison. Work that came later was in the line 
of expansion and elaboration of Lamarck’s, without 
any change of principle. Only with the application 
of embryology and microscopical work of the most 
modern type has there come any essential change of 
method, and this is rather a new method of getting 
at the facts than any fundamental change in the way 
of using them when found. I shall await your work 
on Lamarck’s biography with great interest. 
“T remain, 
“Yours sincerely, 
VW ILETAM thi DAT Ee 
