xu ANIMAL PHYSIOLOGY, 
PAGE 
Living anp Lirrtess Matter—General explanation and comparison of 
their properties... : . . . A : . 38i 
CLASSIFICATION OF THE Annan Kinapon : , 3 . 3 : . 388 
Tabular statement ‘ ; : ‘ F : : . : . 85 
Man’s place in the animal kingdom ° : 35 
Tae Law or Periopiciry or Rayrum in Narvre—Explanations and ilfess 
trations. ‘ ; ci j fs . 5 . . : . . 386 
Tse Law or Hasir. j 7 ; : . : ‘i : ‘i : . 40 
Its foundation i ‘ 7 ‘I : . : : . z . 40 
Instincts 3 . . ; ‘ F ‘ . : . Al 
THE ORIGIN OF THE Forms OF + Lame F ; , ; p : é . At 
Arguments from: : 
Morphology . ‘ : ‘ : : 3 ‘ ‘ - ‘ . 48 
Embryology . AR. . 7 3 ‘i é . ‘ . . 48 
Mimicry. . F : . é ‘ : F . : . 43 
Rudimentary organs . . : : ; : : . 43 
Geographical distribution . . . . . . . . . 45 
Paleontology . ‘ i 3 : : ‘ ‘ F 7 . 45 
Fossil and existing species. : 3 ‘1 : ; : . 4 
Progression. ; ‘ : : : . : . . . . 46 
Domesticated animals . , : F : : : a Coe . 46 
Summary ; . : . F ‘ - : . 7 3 . . AT 
REPRODUCTION . : . : ‘ : $ . . ‘ . ; . 50 
General . 3 ; : : . : ‘ ‘ : ‘ ‘ . . 50 
Theovum . . F : , é A . 54 
The origin and duvetopment of the ovum ., : ‘ : : . 57 
Changes in the ovum itself . ‘ ‘ ‘ ¥ , z * . 59 
The male cell , F j ‘ : 4 ‘ : . . 60 
The origin of the Spetuuatozoon ; ; : é : j : . 61 
Fertilization of the ovum. ; x é é : % . 62 
Segmentation and subsequent charges, ‘ Z : 5 ; ; . 63 
The gastrula . 3 i , ‘ ‘ : ‘ F . . 66 
The hen’s egg . ; é . Z - : : : . 67 
The origin of the fowl’s — ‘ : ae 7 7 7 . 68 
Embryonic membranes of birds . : ‘ ; : F Fi - 72 
The foetal (embryonic) membranes of eapaenais . 7 : . 7 . 6 
The placenta . 5 . . . : : : 3 : F - 80 
The discoidal placenta . ‘ ‘ 2 : . ‘ ‘ 5 . 81 
The metadiscoidal placenta . é 3 ‘ . 3 : - . 81 
The zonary placenta. F . 7 : a thy ‘ . 86 
The diffuse placenta. a ee -  .  « 86 
The polycotyledonary placenta { 2 & « a pias s oy . 86 
Microscopic structure of the placenta . ‘ - if . . : . 87 
Illustrations . ; F i ‘ 3 ‘ : . : é . 87 
Evolution : é A 3 . : . . . ‘ : . 89 
Summary ‘ Fe sige . F is . . 89 
THE DEVELOPMENT OF THE Embryo Treeue - - . ‘ : : . 90 
Germ-layers . z . . ‘ : : 5 : - 92 
Origin of the vascular system. ; ; eee ‘ : ; . 97 
The growth of theembryo . . . . Be as . « 102 
