RISE OF COMPARATIVE ANATOMY 155 
founded comparative anatomy. From 1801 to 1805 appeared 
his Legons d’ Anatomie Com paréc, a systematic treatise on the 
comparative anatomy of animals, embracing both the in- 
vertebrates and the vertebrates. In 1812 was published his 
great work on the fossil bones about Paris, an achievement 
which founded the science of vertebrate paleontology. His 
extensive examination of the structure of fishes also added 
to his already great reputation. His book on the animal 
kingdom (Le Régne Animal distribué d’aprés son Organisa- 
tion, 1816), in which he expounded his type-theory, has been 
considered in a previous chapter. 
He was also deeply interested in the historical develop- 
ment of science, and his volumes on the rise of the natural 
sciences give us almost the best historical estimate of the 
progress of science that we have at the present day. 
His Domestic Life.—Mrs. Lee, in a chatty account of 
Cuvier, shows one of his methods of work. He had the 
faculty of making others assist him in various ways. Not 
only members of his family, but also guests in his houschold 
were pressed into service. They were invited to examine 
different editions of works and to indicate the differences in 
the plates and in the text. This practice resulted in saving 
much time for Cuvier, since in the preparation of his histor- 
ical lectures he undertook to examine all the original sources 
of the history with which he was engaged. In his lectures he 
summarized facts relating to different editions of books, etc. 
Mrs. Lee also gives a picture of his family life, which was, 
to all accounts, very beautiful. He was devoted to his wife 
and children, and in the midst of exacting cares he found 
time to bind his family in love and devotion. Cuvier was 
called upon to suffer poignant grief in the loss of his chil- 
dren, and his direct family was not continued. He was 
especially broken by the death of his daughter who had 
grown to young womanhood and was about to be married. 
