INDEX. 



ABS 



A BSORPTION in the animal, 

 *"* 339 ; in the plant, 200 

 Acetabulum, 306 

 Afferent nerves, 317 

 Agassiz, 352 

 Albumin, 26 



Albuminates, characters of, 26 

 Albuminoids, characters of, 26, 27 

 Aleurone, nature and uses of, 1^,6 

 Alkaloids, vegetal, 209 

 Alternation of geneiations, 100 

 Amides, 204 



Amceba, life-history of, 73 

 Amoeboid motion, 33 



stage in Protomvxa, 59 

 Amphioxus, alimentary system of, 



253; atrial cavity, 254'; circula- 

 tory system, 255; coelom, 257; 

 development of the embryo, 260 ; 

 excretory system, 256 ; external 

 characters, 252 ; locomotory sys- 

 tem, 258 ; nervous system, 258 ; 

 protective system, 258 ; repr duc- 

 tive system, 259 ; respiratory sys- 

 tem, 253 ; sense organs, 259 ; 

 supporting system, 258 



and Lumbricus compared, 263 

 Amyloids, characters of, 27 

 Anabolism, 34 ; in the plant, 197 ; 



in the animal, 336 

 Analysis, 25 

 Anastates, 34 

 Anatomic Glntrale, 349 

 Angiospermse, 144 

 Annual rings in wood, 180 

 Anterior abdominal vein, 291 

 Anthotaxis, 160 

 Aorta, 289 

 Apheliotropism, 212 



BIO 



Apical cell, 120 



Apogamy, 100 



Aqueous humour, 325 



Arabian medicine, 346 



Archenteron, 249 



Archesporium, 109 



Aristotle, 345 



Aromatic substances, 209 



Artery, structure of an, 286 



Asci, 97 



Ascospores, 97 



Asexual reproduction, 52 ; in Peni- 



cillium, 95, 98 

 Ash of plants, analysis of the, 195 ; 



constituent of the, 190 

 Aspaiagin, 204 

 Assimilation, conditions of, 203 ; 



in the plant, 203 ; in the animal, 



340 



Astronomy, definition of. 3 

 Atmosphere, composition of the, 41 

 Atom, 9 



Auricles of the heart, 285 

 Automatism of protoplasm, 34 

 Axial cylinders of nerves, 314 



BAER, von, 352 

 Bagdad, medical schools of, 



346 



Balance of nature, the, 48 

 Balfour, 352 

 Bary, De, 352 

 Bast, 118, 147, 179 

 Bernard, Claude, 351 

 Bichat, 349 



Bile, 280 ; functions of, 338 

 Biology, definition of, 4 ; position 



among the sciences, 5 



A A 2 



