O SYNOPSIS OP CHAPTERS. 



Crustaceans—Review topics— Table of differences between a grasshopper, 

 spider, centipede, and crawflsh— Table of resemblances — Definition of 

 an Arthropod. 



CHAPTER VI.— THE PISH 79 



Laboratory directions — The live minnow- Additional facts about 

 the llsh : orders, method of breathing, action of gills, method of distri- 

 bution, single circulation, homology of the air bladder— Review topics- 

 Vocabulary. 



CHAPTER VII.— BATRACHIA. 91 



The frog — Laboratory directions — Additional tacts: method of 

 breathing, circulation — Microscopic object; blood corpuscles— The toad- 

 Table of differences between a toad and a frog— Tadpole —Laboratory 

 directions— Comparison of a tadpole and a fish- Demonstration of von 

 Baer's prinoiple--The three series: ontogenetic, phylogenetic, taxo- 

 nomlc— Review topics on the frog. 



CHAPTER VIII.— Birds and Reptiles 104 



The pigeon— Laboratory directions— Feathers— An egg— Table of 

 differences between a pigeon and a fish — Additional facts: feathers, 

 vrtng muscles, teeth, circulation, breathing, embryology, egg, air space, 

 migration — Review topics on the pigeon— The turtle— Laboratory^ direc- 

 tions — Table of resemblances between a turtle and a pigeon— Additional 

 facts — Archseopteryx. 



CHAPTER IX— Mammals 121 



The rabbit— Laboratory directions— Table of differences . between a 

 flsh, frog, pigeon, turtle, and rabbit— Table of resemblances— Definition 

 of each class of vertebrates— Definition of vertebrate — Table of differ- 

 ences between a grasshopper and a rabbit — Additional facts about mam- 

 mals: teeth. Injuries, rabbits in Australia, checks on increase, pressure 

 on subsistence, struggle for existence, survival of the ftttest -Addi- 

 tional facts about vertebrates; amphioxus, notochord, vestigial organs. 



CHAPTER X.— Other Invertebrates 133 



The fresh-water clam— Laboratory directions— Suggestive ques- 

 tions—Facts about the clam— The oyster— Table of differences between 

 the oyster and the clam— Table of resemblances— The snail— Laboratory 

 directions— Table of differences between the clam and the snail— Table 

 of resemblances- Facts about the snail— Microscopic object: odonto- 

 phore — The earthworm— Laboratory directions — Pacts about the earth- 

 worm: breathing, locomotion, lite habits, other worms— Microscopic 

 object: cross section — Table of differences between a caterpillar and an 

 earthworm— The starfish— Laboratory directions— Facts about the star- 

 fish: bilateral symmetry, water-pipe system — Review topics on the 

 clam, snail, earthworm, and starfish— Fresh-water hydra— Laboratory 

 directions— Facts about the hydra— Presh-water sponge— Laboratory 

 directions — Facts about the sponge— Protozoa; vortlcelTa, carchesium, 

 eplstylis, stentor, paramceclum, amoeba— Table of resemblances among 

 vorticella, stentor, paramceclum, amoeba— Concept of a protozoan— Facts 

 about the protozoa: practical Immortality, reproduction, undifferenti- 

 ated cell— Table of resemblances among rabbit, clam, grasshopper, 

 earthworm, starfish, hydra, sponge, and paramceclum— Concept and 

 definition of an animal— Differential table showing addition of organs 

 to the different groups— Demonstration of rank among animals— Logical 

 definition of each branch — General review topics. 



CHAPTER XL— Collecting and Preserving Material 170 



(With Suggestions upon its Management in the Class.) 



CHAPTER XII.— Classification or Animals 182 



CHAPTER XIII.— Analytical Tables 185 



(For Determining the Families of Insects.) 



