371 



INDEX. 



Acalephs, their occurrence in past 

 ages, 33, n. 1; their standing, 40; 

 their characteristics, 222; their li- 

 mits as a class, 287, n. 



Acari, 121 



Acephala, their standing, 40 



Acrita, as a primary division of the 

 animal kingdom, 347 



Actinaria, their standing, 161, 223 



Actinozoaria, 217 



ADAMS, his work, 52, n. 



AGASSIZ, his works, 14, n.; 19, n.; 24, 

 n. 2; 28, n. 1; 35, n. 1 and 2; 37, 

 n. 2; 39, n. 1 and 2; 44, n. 1; 45, 

 n. 1; 46, n. 1; 48, n. 1; 58, n.; 80, 

 n. 2; 92, n. 3; 113, n. 2; 116, n.l; 

 122, n. 1; 134, n. 3; 145, n. 1; 161, 

 n. 1; 180, n. 9; 196, n. 2; on Pro- 

 tozoa, 113; Rhizopoda, 113, 289; 

 Infusoria, 113 



ALBERTI, his work, 142, n. 4 



ALLMAN, his papers, 105, n.; 108, n. 1 



Allocotyledones or Allovitellians, as a 

 primary division of the animal 

 kingdom, 361 



Alternate generation, 135-140; differs 

 from metamorphosis, 138 



ALTON (D'), his work, 145, n. 1 



AmUyopsis spelceus, 19 



Amorphozoaria, 217 



Amphibians, a distinct class^of Ver- 

 tebrata, 124 



Amphloxus, 122, n. 1 



Anaima, correspond to the Inverte- 

 brata, 208 



Analogy, first distinguished from ho- 

 mology by Swainson, 26, 130; ca- 

 tegories of analogy, 271-281 



Anentera, Infusoria belonging to the 

 vegetable kingdom, 290 



Animals, their multiplication and ori- 

 gin, 15, n.; difference between them 

 and man, 97, n. 2 



Anmdata, 114, 116-118 



Aquatic animals, their geographical 

 limitation, 43; their size, 73 



Arachnoids, 120 



ARCHIAC (I)'), his works, 113, n. 2; 

 141, n. 1; 142, n. 4 



ARISTOTELES, homological structures 

 known to him, 25 ; his work, 25, 

 n.; his distinction of man and mon- 

 keys, 97, n. 2; his views of the affi- 

 nities of animals, 301, 305; his di- 

 vision of Articulata, 305, n. 1; his 

 malakia, 305, n. 2 



Arthropoda, as a primary group of the 

 animal kingdom, 237 



Articulata, a primary division of the 

 animal kingdom, 40; their classes, 

 112 



Arfiozoaria, 217 



Association of animals, 43 



Asterioids, their standing and succes- 

 sion, 162 



AUBERT, his papers, 115, n. 1; 116, 

 n. 1; 123, n. 



AUDUBON, his work, 85, n. 2; 214 



AUERBACH, his paper, 113, n. 2 



AUSTIN (Th. and Th. jr.), their work, 

 145, n. 1 



Average size of animals, 70 



Aves, see Birds 



BABBAGE, Ninth Bridgewater Trea- 

 tise, 12, n. 



BAER, his works, 24, n. 2; 101, n. 2; 

 116, n. 1; 122, n. 1; 124, n. 1 and 

 2 ; his embryological researches, 

 130; his principles of classification, 

 350-360 



BAGGE, his paper, 114, n. 2 



BAIRD, his paper, 68 n. 



BARRAUDE, his work, 32, n. 1 



BARRY, his paper, 125, n. 3 



BATE, his papers, 119, n. 1 and 2 



BATRACHIA, their succession, 173 



BE 2 



