82 ADAPTATION AND DISEASE 



and I were the first to note x in 1906, the animal organism 

 affords abundant examples of these fluid crystals. As D'Arcy 

 Thompson well remarks, 2 " the phenomenon of liquid crystalliza- 

 tion does not destroy the distinction between crystalline and 

 colloidal forms, but gives added unity and continuity to the 

 whole series of phenomena." 



1 Adami and Aschoff, Proc. Royal Soc. B., 1906, 359, and Adami, " The 

 Myelins and Potential Fluid Crystals of the Organism," Harvey Lectures, 

 2nd series, 1908, 117 (here reprinted as Chapter IV. of Part II.), and Aschoff, 

 Verhandl. Deutsch. Pathol. Gesellsch. x., 1907, 166. 



2 Growth and Form, p. 204. 



