

The Devclopmeiii of the Aiiiuial Kinodom. 



Naturtalists, whatever may be their opmions on the 

 question of P]vohition. unite in beheving in the exist- 

 ence of ;in Order of Relationship in the animal 

 world. To trace this order and to seek its cause is one 

 of the most interesting occupations which can engage 

 the human mind, and is one well worthy of honest 

 study through life, even if but little a])parent progress 

 should ))e made therein. 



It is not possible to study Animal Life effectively 

 without a general knowledge of its co-related branch, 

 Vegetable Life ; nor tlie System of Life as a whole 

 without some attention to the Mineral Kingdom ; nor 

 can either Kingdom be fairly understood without due 

 consideration of the Laws which control matter. The 

 Physicist must aid the Biologist; and on their con- 

 clusions both the Botanist and Zoologist are largely 

 dependent. Each' science enriches the other, and we 

 who can devote ourselves to but one gladly acknowl- 

 edge our indebtedness to all who ])estow their help. 



