GENERAL INDEX. 



865 



AVE 

 Avcs — nervous system — continued. 



optic, ii. 122 



third, or oculomotorial, 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. 124 



auditory 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 



VOL. III. 



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 

 lacrymal, ii. 58 

 in Raptores, 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 



3 K 



