LIST OF ILLUSTRATIONS 



741. 



742. 



743. 

 744. 



745. 

 746. 

 747. 

 748. 

 749. 

 750. 

 751. 



752. 



753. 



754. 



755. 



756. 



757. 



758. 



759. 



760. 



761. 



762. 



763. 



764. 



765. 



766. 



767 



769. 



770. 



771. 



772. 



773. 



774. 



775. 



776. 



777. 



778. 



779. 



780, 



781, 



782, 



783 



784 



785, 



786 



and 



Amphioxus lanceolatus 



,, transver.se sections of pharyngeal and in 



testinal regions .... 



,, ,, anatomy, diagrammatic 



. ,, ,, transverse section of pharyngeal region 



diagrammatic .... 

 ,, ,, diagram of vascular system 



,, ,, nephridium 



^, ,, l)rain and cerebral nerves . 



,, anterior portion of neuron 



^j ,, segmentation of the oosperm 



,, ,, formation of gastrula . 



J, ,, development of notochord, neuron 



mes(.)derm 



,, ,, advanced embryo 



young larva 



,, ,, more advanced larva . 



,, ,, develop'iient of atrium 



^, ,, ,, ,, transverse section 



Ideal Craniate 



Section of .skin of Fish 



Muscular system of Dogtish 



Ideal Craniate, anatomy . . . . - . 

 Vertebral column of embryo, transverse section 

 Diagram illustrating segmentation of vertel)ral column . 



Elements of embryonic cranium 



Diagrams of cartilaginous skull 



Diagrams of l)ony skull 



Development of pelvic fins, diagram 



and 768. Diagrams of limbs and limb-girdles 



Structure and development of tooth 



Structure of liver, diagrammatic 



Diagx'am of gills 



Diagram of vascular system of Fish 



Diagram of circulation in a Fish 



Diagram of vascular system of embryo of air-breathing Crani;i 

 Diagram of heart of Amphibian and Crocodile 



Blood-corpuscles of Frog and Man 



Transverse section of spinal cord . . . . 



Diagrams of Craniate l)rain 



Diagram of cerebral and anterior spinal nerves 



, Organs of touch 



, Sensory canals of head and organs of tlie lateral line 



, Taste-buds 



. Olfactory cells 



, Section of eye 



, Diagram of retina 



, Development of eye 



ite 



45 



46 

 49 



50 

 51 

 53 

 54 

 55 

 56 

 57 



58 



59 



60 



62 



63 



64 



68 



69 



70 



71 



73 



74 



75 



77 



80 



82 



83 



86 



87 



89 



91 



93 



95 



96 



97 



99 



101 



104 



107 



108 



109 



1(»9 



110 



111 



112 



