XII.—DEVELOPMENT OF THE TOAD.
[Field and laboratory exercise], [55.]
XIII.—MULTIPLICATION AND DEVELOPMENT.
Multiplication, [57.]—Spontaneous generation, [58.]—Simplest multiplication and development, [59.]—Birth and hatching, [61.]—Life-history, [62.]
PART II
SYSTEMATIC ZOOLOGY
XIV.—THE CLASSIFICATION OF ANIMALS.
[Laboratory exercise and recitation], [65.]—Basis and significance of classification, [65.]—Importance of development in determining classification, [67.]—Scientific names, [68.]—An example of classification, [68.]—Species, [69.]—Genus, [70.]—Family, [72.]—Order, [72.]—Class and branch, [73.]