THE HISTORY OF ANATOMICAL SCIENCE 307 
thus accumulated was eventually summed up and 
published, first in the lectures on the Inverte- 
brates (1843) and, secondly, in those on the 
Vertebrates (1860-1868). 
As methodically arranged and comprehensive 
repertories of the anatomy of animals, it may be 
a question whether these works are equal to 
the contemporary ‘ Handbuch ’ of Siebold and 
Stannius ; but it may quite safely be said of 
them, that they are based on the results of a 
greater amount of personal investigation than 
any work of the kind except, perhaps, Cuvier’s 
‘ Lecons ; ’ and I put the exception doubtfully, 
inasmuch as Cuvier was aided by highly skilled 
assistants. 
Further, I think that Owen’s monographic 
work occupies a unique position, if one con- 
siders, not merely its general high standard of 
excellence, but the way in which so many of 
these memoirs have opened up new regions of 
investigation. I mention the following, as some 
of the most important from this point of view, in 
addition to that on the Pearly Nautilus, to which I 
have already referred. 
To begin with the higher animals, Owen’s 
early memoirs on the anatomy of the anthropoid 
Apes contained by far the most complete and 
adequate account of their structure, and of the re- 
semblances and differences between them and man, 
then extant ; and they formed the foundation of 
