INDEX 



ACANTHOCEPHALA, 326 



Acarus scabiei, 337 

 Accessory idioplasm, 251 

 Acquired immunity, 359 

 Actinozoa, 325 



Adami's theory of heredity, 262 

 Aerobic bacteria, 52 

 African lethargy, 347 

 Agassiz on classification, 296 

 Aggressins, 350, 353 

 Alexine, 373 

 g Allelomorphs, 257 

 Allergia, 363 



Allman on geotropism, 66 

 Alternation of generation, 185 

 Altmann, 95 

 Amboceptor, 365 

 Amnion, 214 

 Amoeba and electric currents, 61 



conductivity in, 69 



food reactions of, 49 



mechanical stimulation, 44 



movement in, 74 



structure of, 110 

 Amoeboid movement, 74 

 Amphiaster, 106 

 Amphimixis, 116, 181 

 Amphipyrenin, 98 

 Anabolism, 83 

 Anaphase, 105 



Anaphylaxis, 363 



Anaximander, 21 



Anchylostoma, 340 

 duodenale, 326 



Ancistrum, 324 



Anesthetics, 37 



Animal kingdom, relations of di- 

 visions of, 293 



Animalculists, 200 



Animals, classification of, 300 

 conductivity in, 70 

 geotropism in, 66 

 reproduction in, 188 



Annulata, 327 



Anopheles, 344 



Anophlophyra, 324 



Antheridium, 178, 187 



Anthers, 187 



Anthrax, vaccine for, 381 



Antibodies, 305, 362 



Antigen, 305, 362 



Antitoxins, 305 

 therapeutic, 364 



Apanteles congregatus, 332 



Arachnida, 333 



Archegonia, 187 



Archenteron, 210 



Archiblast, 209 



Archicele, 209 



Arcus senilis, 435 



Aristotle, 270, 289 



Arnold, 107 



443 



