4(12 



ZOOLOGY 



memorable work, " Structure of the Human Body." This great 

 work m anatomy created a revohition in the science, and 

 scholars flocked to him at Bologna, Pisa, and I^ouvain. From 

 among these arose nearly all the prominent anatomists of the 

 latter part of the sixteenth centurjr, manj' of whom extended 

 their anatomical studies to the lower animals. Indeed, the 



scientific activity 

 started bj' ^'esalius 

 has continued un- 

 broken to the present 

 time, and has re- 

 sulted in the zoologi- 

 cal sub-sciences of 

 comparative an- 

 atomj' and physi- 

 ology. 



In consequence of 

 the construction of 

 encyclopaedic works 

 on zoologj^, a search 

 was made for new 

 species in order to 

 make the books as complete as possible. New countries were 

 visited for the purpose of collecting new animals, the seashore 

 and ponds were fished, and even the new world opened by the 

 comjDound microscope at the beginning of the seventeenth cen- 

 tury was utilized. The increase of species made necessary the 

 invention of names for them. Gradually the necessity' of recog- 

 nizing subdivisions of the primitive groui:)s of quadrupeds, 

 birds, etc., became apparent, and this necessity led to the sys- 

 tematic period. This period is opened by the English natural- 



FiG. 416. - 



.John B.ay. From Ray Society 

 Putilications. 



