26o 



Index to Notes. 



Mother, her share in generation of soul, 



i. I. 14. 

 Motion, modes of, i. I. 16 ; elementary 



forms of, ii. I. 2; rotatory and eternal, 



i. I. 5 ; cooling action of, iii. 6. 14 ; 



mechanism of in animals, iii. 4. 20, ii. 



16. II ; spurious treatise on, iv. 13. 13. 

 Mullet, stomach of, iii. 14. 19. 

 MurDsna, iv. 13. 11. 

 Muscle. See Flesh. 

 Mustelus, its placenta known to A., iv. 



13. I. 

 Myriapoda, iv. 5. 70, i. 2. 3 ; intestinal 



canal of, iv. 5. 74. 

 Mytis, iv. 5. 13, 29 and 64, iii. 4. I. 



Nails, part of skin, ii. 9. 12 ; use of, iv. 

 10. 16. 



Natural philosophy, how far concerned 

 with the soul, i. i. 17 and 18; should 

 deal with final rather than material cause, 

 i. I. 26 ; may deal with principles of 

 medicine, ii. 7. 14. 



Nature, and art, i. i. 8 and 19 ; her order 

 general, not universal, iii. 2. 18 ; acts 

 under some constraint, iv. 5. 2 ; avails 

 herself of necessary conditions, iii. 2. 

 16 ; usually gives separate organs for 

 separate functions, iv. 6. 15 ; sometimes 

 uses one organ for several functions, iii. 

 1. II and 12, iv. 10. 22 ; saves in one 

 part to spend in another, ii. 9. 9 ; gives 

 animals a structure useful to themselves, 

 iv. 13. 29. 



Necessity, various kinds of, i. i. 23, 24 

 and 25. 



Neck, uses of, iv. 10. 7 ; use of long one, 



iii- 3- 3- 

 Nereis, confounded with centipede, iv. 5. 70. 

 Nerites, iv. 5. 32. 

 Nerves, confounded with sinews, iii. 4. 20 ; 



whether any were known to A., ii. 10. 



9 and 19. 

 Nictitating membrane, ii. 13. 2, iv. 11. 17. 

 Nostrils, position of, ii. 10. 25. 

 Nutrition, A.'s account of, iii. 5. 5 ; treatise 



on, ii. 3. 16. 

 Nylghau, iii. 2. 15. 



Occiput, empty space in, ii. 10. 18. 

 Octopoda, species of, iv. 9- 17 ; shape, iv. 



9. 6 ; mode of progression, iv. 9. 8 ; 



littoral habits, iv. 5. 16 ; absence of fins, 



iv. 9. 19. 

 Oesophagus, whether necessary, iv. 10. 5 ; 



of fishes, iii. 3. 2 ; relation to taste, iv. 



II. 8. 

 Oestrus, ii. 17. 16. 

 Oils, coagulation of, ii. 2. 13. 

 Omentum, iv. 3. 3. 

 Operculum, of gasteropods, iv. 5. 31. 

 Ophidia, iv. 11. 3; tongue, ii. 17. 7; 



elongated viscera, iv. I. 7 ; gall-bladder, 



iv. 2. I ; scales, iv. 11. 14 ; bones, ii. 9. 



7; vertebra?, iv. II. 23; testes, iv. 13. 



35; absence of eyelids, iv. Ii. 15; 



locomotion, iv. 13. 6 and 14; horned 

 species, iii. 2. i. 



Organic equivalents, law of, ii. 9. 9, ii. 14: 

 4, iii. 2. 13 and 19, iv. 12. 18. 



Organs, relation to tissues, ii. I. 5, 7, 8 

 and 9 ; functions and properties, ii. 1.9; 

 simple and compound, ii. i. 16 ; separate 

 for separate functions, iv. 6. 15 ; some- 

 times one for diverse functions, iii. I. 11, 

 ii. 16. 5, ii. 17. 17 ; whether prior or 

 posterior to functions, ii.' 16. 13, iv. lo. 

 14 ; pre-existing are modified for new 

 functions, iii. I. 12, iv. 10. 22 ; of animal 

 life are symmetrical, iii. 2. 11. 



Oryx, iii. 2. 12, iii. i. i. 



Ostracoderma. See Testacea. 



Ostrich, not seen by A., iv. 14. 4 ; nor its 

 skeleton, iv. 12. 13; imperfectdiaphragm, 

 iii. 10. I ; eyelashes, ii. 14. i ; feathers, 

 iv. 14. I ; naked head and neck, iv. 14. 

 3 ; foot, iv. 14. 4. 



Oviparous quadrupeds. See Reptiles. 



Ovo-vivipara, iv. II. 24, iv. I. 5- 



Ovum, perfect in birds and reptiles, iv. 11. 

 3, iv. 12. I ; perfect in selachia, not in 

 other fishes, iv. 13. i ; of mammalia 

 unknown to A., iv. 11. 24; of echini, iv. 

 S- 39> iv- 5- 50 ; of testacea, iv. 5. 44. 



Oysters, discovery of generative fluids, iv. 

 5-68. 



Oxen, grazing backwards, ii. 16. 4. 



Palate, of Cyprinoids, ii. 17. 12. 



Palpitation, distinct from normal heart's 

 action, iii. 6. 7. 



Pangenesis, partly anticipated by Hippo- 

 crates, iv. 10. 33. 



Pardalis, iii. 4. 32. 



Parrot, probably never seen by A., ii. 17. 

 3, ii. 13. 2 ; tongue, ii. 17. 3. 



Parrot-fish. See Scarus. 



Parts, homogeneous and heterogeneous, ii. 

 I. 5 and 9 ; division of, ii. i. 16, ii. 2. 3. 



Passive, and active, ii. i. Ii. 



Penis, bone in, iv. 10. 34 ; erection, iv. 



lo- 35- . , - , 



Periodicity, due to influence of celestial 



bodies, i. i. 5- 



Pharynx, and larynx, iii. 3. i. 



Pia mater, ii. 10. 18. 



Pig, its classification, iii. 12. 8. 



Pigment, deficient in foetus, ii. 6. 3. 



Pinnalipedes, iv. 12. 8. 



Placental fishes, iv. i. 5. 



Plants, no excretions, ii. 3. 8 ; seeds their 

 residue, iv. 5. 60, iv. 10. 13 ; their roots, 

 ii. 3. 10 ; their vital centre, iv. 5. 59 ; 

 parasitical kinds, iv, 5. 56 ; some coagu- 

 late milk, iii. 15. 5. 



Plato, system of dichotomy, i. 2. I ; took 

 his physiology from Hippocrates, ii. 10. 

 8; coupled vision with fire, ii. I. 12; 

 thought right superior to left, ii. 2. 6 ; 

 thought blood fibres were solid during 

 life, ii. 4. 6 ; thought marrow was 

 generative, ii. 6. 1 ; thought spinal cord 

 and brain were identical in substance, ii. 



