GENERAL INDEX. 



865 



AVE 



Aves nervous system continued. 

 optic, ii. 122 



third, or oculornotorial, ii. 122 

 fourth, ii. 122 

 fifth or trigeminal, ii. 122 

 ophthalmic division, ii. 123 



first, ii. 123 



second, ii. 123 



third, ii. 123 



superior maxillary, ii. 123 

 inferior maxillary, ii. 123 

 facial, ii. 121 

 auditor} 7 nerve, ii. 124 

 eighth, "ii. 124 

 pneumogastric, ii. 124 

 hypoglossal, ii. 125 

 spinal, ii. 125 

 cervical, ii. 125 

 sacral, ii. 125 

 brachial plexus, ii. 125 

 obturator, ii. 126 

 femoral, ii. 126 

 ischiatic, ii. 126 

 tibial, ii. 126 

 peroneal, ii. 126 

 organ of touch, ii. 128 

 taste, ii. 129 

 smell, ii. 130 

 hearing, ii. 133 

 sight, ii. 133 



size of eyes, ii. 135 



form, ii. 136 



sclerotic coat, ii. 136 



cornea, ii. 137 



choroid coat, ii. 137 



iris, ii. 137 



marsupium, or pecten, ii. 138 



retina, ii. 140 



aqueous humour, ii. 141 



crystalline lens, ii. 141 



vitreous humour, ii. 141 



muscles of the eyeball, ii. 142 

 recti, ii. 142 

 obliqui, ii. 142 



eyelids, ii. 142 



membrana nictitans, ii. 143 



lacrymal glands, ii. 143 

 osseous system, ii. 14 



general characters, ii. 14 

 skeleton, ii. 14 

 dorsal vertebrae, ii. 14 

 sternum, ii. 20 



keel, ii. 23 



sacral vertebrae, ii. 29 

 pelvis, ii. 32 



variations in its general form 

 and proportions, ii. 36 



ilium, ii. 33 



ischium, ii. 35 



pubic bones, ii. 35 

 caudal vertebrae, ii. 37 



tail, ii. 37 

 cervical vertebrae, ii, 39 



AVE 



Aves osseous system continued. 

 skull, ii. 41 



separate cranial bones, ii. 43 

 basioccipital, ii. 43 

 exoccipitals, ii. 44 

 basisphenoid, ii. 44 

 haemal arch, ii. 46 

 orbitosphenoids, ii. 46 

 occipital condyle, ii. 48 

 mastoid, ii. 50 

 nasal, ii. 51 

 premaxillary, ii. 51 

 maxillary, ii. 52 

 palatines, ii. 52 

 pterygoids, ii. 53 

 malar, ii. 54 

 tympanic, ii. 54, 55 

 mandible, or lower jaw- 

 bone, ii. 56 

 hyoid, ii. 58 

 lacryrnal, ii. 58 

 in Eaptores, ii. 59 

 in Cantores, ii. 59 

 in Grallatores, ii. 60 

 in Natatores, ii. 61 

 limited range of size of the 



cranial cavity, ii. 61 

 foramina, ii. 62 

 tympanic cavity, ii, 62 

 orbits, ii. 62 

 olfactory cerebral crura, ii, 



63 



cranial peculiarities, ii. 64 

 scapular arch and limbs, ii. 65 

 scapula, ii. 65, 66 

 coracoid, ii. 65, 66 

 clavicles, ii. 65, 67 

 humerus, ii. 68 

 radius, ii. 71, 72 

 ulna, ii. 72 

 metacarpus, ii. 73 



anchylosis of, ii. 73 

 pectoral limb, ii. 74 

 pelvic limb, bones of, ii. 75 

 femur, ii. 75 

 tibia, ii. 77 

 fibula, ii. 79 

 toes, ii. 82 

 patella, ii. 83 

 ossification of parts of tendons, 



ii. 83 



peculiar secretions in birds, ii. 230 

 respiratory system, ii. 209 

 lungs, ii. 209 



number, ii. 209 

 colour, ii. 210 

 bronchi, ii. 210 

 arteries, ii. 210 

 air-cells, ii. 211 

 air-passages, ii. 217 



larynx, superior, ii. 217 

 rima glottidis, ii. 218 

 trachea, ii. 219 



VOL. III. 



3 K 



