THE BIOLOGICAL SCIENCES. 



' Morphology. 



The science 



of form, 



structure, 



etc. 



Essentially 



statical. 



Biology. 



The 

 science of 

 all living 



things ; 



i.e., of 

 matter in 

 the living 



state. 



Physiology. 



The science 

 of action or 

 function. 

 Essentially 

 dynamical. 



Aiiatotny. 

 The science of struc- 

 ture ; the term being 

 usually applied to the 

 coarser and more ob- 

 vious composition of 

 plants or animals. 



Histology. 



Microscopic anatomy. 

 The ultimate optical 

 analysis of structure 

 by the aid of the 

 m i c r o s c op e ; sepa- 

 rated from anatomy 

 only as a matter of 

 convenience. 



Taxonomy or Classifi- 

 €atio)t. 



The classification of 

 living things. Based 

 chiefly on phenomena 

 of structure. 



Distribution. 



Considers the position 

 of living things in 

 space and time, their 

 distribution over the 

 present face of the 

 earth and their distri- 

 bution and succession 

 at former periods, as 

 displayed in fossil re- 

 mains. 



Embryology. 



The science of develop- 

 ment from the germ. 

 Includes many mixed 

 problems pertaining 

 both to morphology 

 and physiology. At 

 present largely mor- 

 phological. 



Physiology. 



The special science of 

 the functions of the 

 individual in health 

 and in disease ; hence 

 including Pathology. 



Psychology. 



The science of mental 

 phenomena. 



Sociology. 



The science of social 

 life, i.e., the life of 

 communities, wheth- 

 er of men or of lower 

 animals. 



Botany, y 



The science 

 of vegetal 



living 



matter or 



plants. 



\ Biology. 



The 



science of 



all living 



things ; 



i.e., of 



matter in 



the living 



state. 



1- Zoology. 



The science 

 of animal 



living 

 matter or 

 animals. 



