126 



THE SMALLEST LIVING THINGS 



Bacillus (ba-sil'us) : denned, 16, 17 ; 

 diphtheria, 18* ; giant, 16* ; influenza, 

 16*, 19 ; tuberculosis, 19 ; typhoid, 16*, 

 19 



Bacillus radicicola (ba-sil'us ra-di"si- 

 kol'a), 21 ^ 



Bacteria (bak-te'ri-a) : as food, 45; 

 cause ptomaine poisoning, 19 ; chro- 

 matoid granules, 32 ; denitrifying, 20, 

 21 ; from the intestine of a newt, 74* ; 

 helpful, 19; in industry, 22; in the ni- 

 trogen cycle, 20* ; includes cocci, bac- 

 cilli, and spirilla, 17; man's control of, 

 22; mass action, 19; measuring, 16; 

 multiplication of, 18; neither animal 

 nor plant, 16; nitrogen-fixing, 20; 

 nuclei, 32; of decay, 19, 20*; prepare 

 food for other organisms, 93 ; spiral, 

 17*; used in sewage disposal, 22; used 

 to stimulate crop growth, 21* 



Barbadoes : origin of, 78 



Basal body, 72 



Bedbugs : carry infection, 28 



Bees : sac-brood disease, IS 



Belar (be'lar), Karl I. (1895-1931), 

 German biologist, 111 



Bell-animalcules (bel-an"i-mal'kuls) , 

 13* 



Biology : defined, 2 ; thoroughness of re- 

 search, 2 



Birds : cause of blood diseases in, 26, 30; 

 dependent on plants, 45 ; first appear- 

 ance, 5, 6; malaria, 104 



Black disease of India : cause of, 104 



Blood cells : of a fowl, 29* ; of a turtle, 

 106* 



Blood corpuscle, 16* 



Bodo (bo'do), 72*, 73, 74 



Bone : result of activity of protoplasm, 9 



Bovine malaria : cause, 28 



Brachiopod (brak'i-6-pod"), 4*, 6 



Brazil, Leishmaniasis of, 104 



Brown color of plants, 45 



Budding process of reproduction : des- 

 mids, 59 ; diatoms, 64 ; sarcodina, 78 



Butter : bacteria used in manufacture, 22 



Calcium : in protoplasm, 33 



Calonympha (kal"6-nim'fa), 75 



Carbohydrates : in protoplasm, 32, 33 



Carbon dioxide : in protoplasm, 32 



Carchesium (kar-ke'si-um). 84 



Carroll, James (1854-1907), American 

 physician, 29 



Cartilage : result of activity of proto- 

 plasm, 9 



Castellani (kas-te-lan-i), Aldo (1875- 

 ), Italian-British pathologist, 2? 



Catenoid colonies : see Colonies 



Cattle : blood disease of, 102 ; dependent 

 on plants, 45; foot-and-mouth disease 

 of, 15 



Cell division: a complicated process, 

 111; amoeba proteus, 78; among the 

 chrysophyceae, 61 ; among the Infu- 

 soria, 82; among the Peridiniales, 67; 

 chromosomes, 41 ; Eupotes patella, 83 ; 

 in desmids, 59; in two planes, 51; 

 three stages, 9* ; see also Reproduc- 

 tion 



Cell theory of organic structure, 9 



Cells : a typical cell, 31 ; all living things 

 composed of, 9; blood, 29*, 106*; 

 cytology, 2; division of labor, 38, 46; 

 encystment, 35, 86; forming a tissue, 

 9*; histology, 2; Hydrurus foetidus, 

 50*; most complex, 10; swarmer, 50*, 

 54*, 58; vitality, 34 



Cellulose : distinguishing characteristic 

 of plants, 43 ; in protophyta, 53 ; origin 

 of,_ 33 



Centipede : bacillus from intestine of, 

 16* ; parasite of, 104, 105* 



Centricae (sen'tri-ci), 63 



Centropyxis (sen"tro-pik'sis), 76 



Ceratium hirundinella (se-ra'shi-um hir- 

 un-di-neTa), 65, 67 



Ceratium tripos (se-ra'shi-um tri'pos), 

 65, 66* 



Certes, A. : discovers parasitic spiro- 

 chaete in oyster, 25 



Chagas disease : transmission of, 104 



Chalk cliffs of England, 78 



Cheese : bacteria used in manufacture, 22 



Chilomonas Paramecium (ki"16-mon'as 

 par"a-me'shi-um), 58*. 65 



Chitin (kl'tin) : in rhizopods, 76, 78 



Chlorella (klo-rel'a) : in symbiosis, 58, 

 84 



Chlorococcales (klo"r6-kok'sa-lez), 57 



Chloromonadales (klo"ro-mo-nad'a"lez) , 

 49 



Chloromonadida (klo"r6-m6n-ad'id-a) 

 48, 49 



Chlorophyll (klo'ro-fil) : defined, 43; 

 chemical composition, 45; distinguish- 

 ing characteristic of plants, 43; func- 

 tion of, 93 ; importance of, 45 ; in Eu- 

 glenineae, 68 ; pigments in, 45, 53, 60, 65 



Chloroplastids (klo"ro-plas'tids) : manu- 

 facture chlorophyll, 45; perform life 

 processes, 31 



Choanocysts (ko'a-no-sists), 73 



Chromatin (kro'ma-tin) : contains pro- 

 teins, 33 



