1 64 



, 2.2, 31, 32, 35, 



Prevot, 115 

 Primary coil, 139 

 Protein, 3, 6, 7, 10, 12, 17 



40, 44, 47, 48, 59, 154 

 Protein precipitants, 17, 32 



Proteus, 43, 44, 47, 57, 71, 115, 127, 135. 136, 



144, 15^ 

 Protista, 44, 149 

 Protoplasm, 6, 35 

 Protoplast, 5, 42, 88 

 Protozoa, 99, 103 

 Pseiidomonas, 27, 38, 43, 47, 151 

 Pus, 4 



Radiation, 72, 74 



Reagent, 7, 14 



Reduction, nuclear, 65, 69, 73, 75, 99, io-2, 



no, 112, 115, 118, 150 

 Reflecting microscope, 3 

 Reproduction, 68-72, 92 

 Reproduction, complex vegetative, 67-72, 



79, 85-98 

 Reticulocyte, 33 

 Rhizobiiim, 36, no, 124, 129 

 Ribonuclease, 9 



Ribonucleic acid {see Nucleic acid) 

 Robinow, 27, 31, 32, 36, 41, 51, 64, 157 

 Romanowsky stains, 8 

 Rooyen, van, 97 

 Rough morphology, 28, 33, 36, 64, 65, 67, 



70, 82, 83, 86, 89, 99, 100, 102, 106, 109, 



137. 139. 140 

 Rubin, 72 



Salmonella typhi, 47, 57, 77, 15^ 



Sap vacuole, 32 



Sarcina, 60, 149 



Schaudinn, 36, 79, 102 



Schiff's reagent, 6 



Schizomycetes, 147 



Seed, 81 



Segregation, 74 



Sectioning, 16, 17, 20, 21, iz, 27, 32, 33, 37, 



41, 62 



Septum, 12, 18, 21, 27, 29, 32-38, 47, 86, 87, 



96, 124 

 Sexuality, 73, 77-83, 88, 90, 91, 97, 99-116, 



118, 125, 129, 158 

 Shigella flexneri, 55, 68, 71, 139, 140 

 Shigella schmitzii, 57 

 Shrinkage, 5, 6, 14 

 Slide, 4, 7, 9, 14 

 Slime layer, 12, 41 

 Smooth morphology, 28, 33, 36, 37, 64, 67, 



70, 78, 82, 83, 86, 88, 89, 90, 91, 100, 



102, 106, 141 

 Soil, 119 



Spherophoriis, 115 

 Spiral morphology, 25, 67, 146-156 

 Spirillum, 27, 35, 38, 42, 44, 129, 131, 150-156 

 Sph(srotilus discophorus, 121 



Sphcsrotilus natans, gi 



Spirochaetes, 125 



Sporangium, 100, 102, 115 



Spore, 41, 44, 52, 57, 59, 64, 65, 67, 71, 76, 



79, 80, 81, 82, 96, 99, 100, 102, no, 113, 



115, 120, 121, 129, 142, 144, 149, 153, 154 

 Spore coat, 41, 48, 57, 59, 113 

 Sporulation, 27, 76, 83, 100, 102, 106, 158 

 Stacey, 35 



Stalk, 87, 119, 124, 134, 136, 144 

 Staphylococcus, 29, 87 

 Stille, 51, 157 



Stoughton, 53, 75, 77, 109, III 

 Streptobacillus moniliformis, 97, 115, 125, 127 

 Streptococcus, 27, 28, 29, 69, 70, 141, 142 

 Streptococcus fcscalis, 68, 71 

 Streptomyces, 62, 79, 80, 81, 82, 95, 96, 102, 



113, 115, 121, 129, 142, 144, 153, 155, 158 

 Sudan dyes, 12 

 Sulphydryl, 44 

 Surface tension, 25, 139 

 Swarm, swarm cells, 25, 36, 71, 72, 90, 115, 



118, 119, 120, 124, 129, 135, 136, 137, 



139. 144 

 Symbiosis, 127 

 Symplasm, 90, 103 

 Systematics, 146-156 



Tannic acid, 12, 22, 28, 31, 32, 59 

 Tannic-acid-violet, 12, ^2, 92, 95, 129 

 Teece, 35 



Temperature, 6, 7, 85 

 Text-book, 14, 88, 137 

 Tomcsik, 17, 20, 28, 35, 37, 43 

 Trichloracetic acid, 7, 55 

 Trichobacteria, 153 

 Trypsin, 10, 18 

 Tyrosine, 35 



Ultraviolet light, 53, 62, 75, 159 



Vaseline, 14 



Vibrio, 43, 44, 151, 15^, 156 

 Victoria blue, 12, 31 

 Volutin, 10 



Water-immersion lens, 7 



Wax, 14 



WeibuU, 35 



Witkin, 74, 159 



Wyckoff and Smithburn, 94 



X-rays, 159 



Yeast, 96 



Ziehl-Neelsen stain, 33, 91 

 Zygosaccharomyces, 157 

 Zygospore, 72 

 Zygote, 75, 102, 157 



Printed m Great Britain 

 MtLAfiAN & Ci MMiNi, Ltd., Kdi> 



