Index 



431 



Gamma, streptococci, 331 

 Garbage, 248-250 

 Gay-Lussac, J., 28, 186 

 Gelatin 



as a solidifying agent, 46 



descriptive chart for, 127 



use of, 132 



vs. agar, 80 

 Gelatinase, 132 

 Gelideian cartnagineiim, 48 



corneum, 48 

 Geotrichum, 359 

 German measles, 405 

 Germicide, 196, 197 

 Germ theory of disease, 297 

 Gestation period of animals, 138 

 Giese, A. C., 177 

 Gilchrist's disease, 377 

 Globulin, gamma, 325 

 Glycol vapors, 207, 262 

 Gohar's stain for granules, 114 

 Gonorrhea, see Neisseria 

 Gradocol membranes, 395 

 Graham, T., 94 

 Gram, C., 109 

 Gram stain, 109, 110 



in identifving bacteria, 126-128 

 Granules, 95, 101, 114, 371 

 Greaves, J. E., and Greaves, E. O., 



22, 24 

 Grew, N., 15 

 Growth curves, 137-141 



Halogen compounds, 203-205 



Hamlet, 188 



Hanging drop, 105, 128 



Hansen, 370 



Haptenes, 313 



Harvev, W., 16 



Hawley, J. E., 351 



Heartwater disease, 384, 388, 390 



Heating effect on bacteria, 125 



Heat production by organisms, 174- 



176 

 Heavy metals as disinfectants, 201- 



203 

 Heinmets, F., 98 

 Hektoen, 409 

 Hemocytometer for total counts, 144, 



145 

 Hemolysins, 184, 185, 316, 331. 333 



Hemolysis 



alpha, 184, 255 



beta, 184, 255 



gamma, 184, 255 

 Hemophilus pertussis, 110, 124, 324, 



344 

 Hemotoxins, 182 

 Henle, J., 37, 38 

 Henrici, A. T., 366, 369 

 Heredity and resistance, 304 

 Herpes zoster, 406 

 Hesse, 47, 48 

 Heterotrophs, 61, 266 

 HiHier, J., 104 

 Hippocrates, 296 

 Hiss stain, 112 

 Hitchens, P., 50 

 Hite, K. E., 36 

 Hofius process, 165 

 Holmes, O. W., 48 

 Holophytic nutrition, 52, 57 

 Homer,' 23 



Homologous blood, 411 

 Hooke, R., 8, 15 



Humoral theory of immunity, 312 

 Hyaluronidase, 186 

 Hydrogen ion concentration, see pH 

 Hydrogen peroxide, 205 

 Hydrolysis, 208 

 Hvpertonic solution, 166 

 Hyphae, 359, 360 

 Hypotonic solution, 166 



Ice as potential disease agency, 231, 



232 

 Imbibition, 167 

 Imhoff tanks, 242, 243 

 Immunity, 304 



antigens and antibodies in, 313-316 



definition of, 308 



theories of, 308-312 



to virus diseases, 406 



types of, 312, 313 

 Imvic reactions, 132-135 

 Inclusion bodies, 396 

 India ink, 108 

 Indole test, 127, 132, 133 

 Industrial applications 



of molds, 365 



of yeasts, 374-376 

 Infection 



definition of, 295 



