CH. XXIV. DEVELOPMENT OF ANIMALS. 203 



to the naturalist Lamarck, and how it has become the founda- 

 tion of a grand theory of Hfe in the present century. Mean- 

 while you must bear in mind that Bonnet and Spallanzani 

 added enormously to our knowledge of the lower animals 

 and their powers of life, and together with Boerhaave, 

 Haller, and Hunter did a great deal to advance the sciences 

 of anatomy and physiology in the beginning of the eighteenth 

 century. 



Chief Works consulted. — 'Life of Haller' — * Naturalists' Library;' 

 Brewster's * Encyclopaedia,' arts. 'Physiology' and 'Haller ;' Lawrence's 



* Lectures on Comparative Anatomy,' 1816 and 1848 ; Lawrence's 

 translation of Blumenbach's 'System of Comparative Anatomy,' 1807 j 



* Life of John Hunter' — 'Naturalists' Library,' vol. x. ; Cuvier, 'Hist, 

 des Sciences Naturelles ;' Carpenter's ' Comparative Physiology ; ' Tom 

 Taylor's * Leicester Square,' Appendix by Professor Owen. 



