255 



INDEX TO NOTES. 



Note. — The References in this Index are to Book, Chapter^ and Note. 



A priori statements, iii. 4. 25. 

 Abdomen, why without ribs, ii. 9. 3. 

 Absorption, A.'s account of, iii. 5. 5. 

 Acalephoe, what animals meant, iv. 5. 61 ; 



no excretions, ii. 10. 3. 

 Accident, i. 1.9. 

 Actinite, iv. 5- 61. 

 Active and passive, ii. I. II. 

 Actuality and potentiality, i. i. 23. 

 yEther, i. 1.6, ii, i. 2. 

 AUantois, iv. 12. 15. 

 Amia, iv. 2. 4. 

 Amphibia, confounded with reptiles, iv. 



13. 40 ; development unknown, iv. 



13- 7- 



Anatomy, A.'s ignorance of human, i. 5. 

 I ; treatise on, iv. 5. 34. 



Anaxagoras, i. i. 10. 



Angel-fish, iv. 13. 9. 



Annelida, confused with myriapoda, i. 2. 

 2 ; classed with insects, iv. 5. 20, iv. 6. I. 



Aorta and great vessel, iii. 4. 24. 



Art, and nature, i. 1.8, i. I. 19 ; its instru- 

 ments, i. I, 13. 



Arteries and Veins, differences of, iii. 4. 24 ; 

 terminations, iii. 4. 20, iii. 5, 7 ; relative 

 positions, iii. 5. 12 ; parts nourished by 

 each, iii. 4. 25, iii. 4. 28; known both 

 to contain blood, iii. 5. i : small in fat 

 animals, ii. 5. 8 ; hepatic and splenic, 

 iii. 7. II ; renal, iii. 9. 8 ; pulmonary, 

 iii. 4, 23 and 24 ; iliac, iii. 5. 12 ; 

 formation of, i. I. 11 ; relation to viscera, 

 iii. 4. 10. 



Ascidians, iv. 5. 35 ; structure and classi- 

 fication, iv. 5. 59. 



Aselli, rediscovered lacteals, ii. 3. 11. 



Astaci, iv. 8. i; claws, iv. 8. 10. 



Astragalus, iv. 10. 44. 



Aurochs, iii. 2. 7 ; how it protects itself, 

 ii. 4- 5- 



Balancement organique, ii. 9. 8. 



Batos, iv. 13. 9. 



Bats, iv. 13. 45. 



Bees, intelligence of, ii. 2. 5. 



Bile, its fluidity, ii. 3. 2; its use, iv. 2. 16; 

 exudation of, iv. 2. 11. 



Bilateral symmetry, iii. 5. 4, iii. 7. 2. 



Birds, characters and divisions, iv. 12. i; 

 a homogeneous group, iv. 12. 2; cold 

 animals, iii. 6. 13 ; their development, 

 iv. 12. 15; power of intercommunication, 

 ii. 17-5; small are best songsters, ii. 17. 

 4; drink but little, iii. 6. ii; the heavy- 

 bodied kinds, ii. 13. i; pinnatipede, iv. 

 12. 8; of prey, settling on rocks, iv. 12. 

 17 ; position of legs in flight, iv. 12. 24 

 and 25; neck in flight, iv. 12. 26 ; beak, 

 iii. I. 14; bones, ii. 9. 6; scapula, iv. 

 12. 9 ; sternum, iv. 12. 13 ; ischia, iv. 

 12. 27 ; pectoral muscles, iv. 12. 14 ; 

 excreta, iv. i. 4; ear, ii. 12. i; eyelids, 

 ii. 13. 2; eyelashes, ii. 14. I ; spurs, iii. 

 I. 6 ; number of toes, ii. 17. 3, iv. 12. 

 30; direction of toes, iv. 12. 33 ; 

 phalanges of toes, iv. 12. 22; hind toe 

 of waders, iv. 12. 31 ; oesophagus, iii. 

 14. 9, iii. 14. 13 ; crop, iii. 14. 8 ; 

 proventriculus, iii. 14. 10 ; gizzard, iii. 

 14. 12 ; caeca, iii. 14. 21 ; cloaca, iv. 

 13' 36} liver and spleen, iii. 7. 4, 

 iii. 7. 14, iii. 7. 15 ; kidneys, iii. 9. 

 I and 2 J lung and airsacs, iii. 6. 10. 



Bivalves, structure, iv. 5. 43 and 48 ; 

 mouth, iv. 5. 33 ; ovary, iv. 5. 47 ; 

 generation, iv. 5. 68; second valve, iv. 

 5. 31 ; position, iv. 7. 5. See Testacea. 



Bladder, iii. 8. 3 ; of ovipara, iii. 9. i ; of 

 tortoises, iii. 8. 6 ; use, iii. 7. 18. 



Blood, how formed, iii. 5.5; where formed, 

 iii. 5- 9 ; formed after heart, ii. i. 17 ; 

 increased after food, ii. 3. 14 ; is the 



