Comp"rison of hypop"ysial t"be with position of palæostoma, [317]
Comp"rison of mesosomatic region of Ammocœtes and Eurypterus, [192]
Comp"rison of muscles, branchial, of Ammocœtes and appendage muscles of Scorpion, [171], [447]
Comp"rison of mu"cles, eye, of Vertebrate with dorso-ventral muscles of Scorpion, [267], [272], [459]
Comp"rison of mu"cles, of oral chamber of Ammocœtes and prosomatic musculature of Limulus, [247], [447]
Comp"rison of mu"cles, longitudinal body-muscles of Vertebrate and dorsal longitudinal muscles of Arthropod, [411], [447]
Comp"rison of nerves, appendage of Limulus and Branchipus to lateral root system of Vertebrate, [157]
Comp"rison of ne"ves, cranial and spinal segmental, [152]
Comp"rison of nervous systems of Vertebrate and Arthropod, [36]
Comp"rison of pineal gland of vertebrates and median eyes of Arthropod, [63], [456]