INDEX 



327 



Salicin, 97 



Salicyl alcohol, 97 



Saliva, 124 



Saponification of a fat, 176 



Sauerkraut, 272 



Schiff, 191 



Schizomycetes, 18 



Schlosing and Muntz, 217, 219 



Schryver, 185 



Schulze-Schulzenstein, 226 



Schunck, 247 



Schwann, 134 



Schweitzer's reagent, 161, 162 



Scott-Moncrieff, 225 



Scutellar epithelium, 120, 121 



Secondary alcohols, 52, 59 



Septum, semi- permeable, 11 



Serin, 193, 197 



Serum, 179 



albumin, 183, 208 

 globulin, 208 

 therapy, 11 



Sewage, aerobic tank treatment of, 

 289-291 ; analyses, 305-308 ; 

 interpretation of, 304-305 ; an- 

 aerobic decomposition, 284-289 ; 

 chemical clarification, 291-294 ; 

 choice of filtration methods, 303- 

 304 ; direct treatment on niters, 

 294-295; final purification of, 

 294-304 ; simple sedimentation, 

 283 ; standards for purity of 

 effluents, 307-308; strength of, 

 306-307; tank treatment of, 

 283 ; treatment on trickling and 

 percolating filters, 299-303 

 Sewage mud, 242 

 Sheridan Lea, 216 

 Siedentopf, 9 



Silage, preparation of, 271 

 Silica jelly, 25 

 Silo, 271, 272 

 Sinigrin, 97 

 Six-carbon alcohols, 93 



sugars, 94 



Skatol, 194, 195, 239 

 Skatol-amino-aeetic acid, 195 

 Slate bed, 290 

 Slator, 143 

 Sludge, 284 

 Soap, 169; precipitation of, from 



sewage, 288 

 Sohxlet apparatus, 171 



Soils, fertility of, 261-263 ; inocula- 

 tion of, 260 

 Solution factor, 108 

 Sorbite, 93 

 Soy bean, 260 

 Spallanzani, 136 

 Specific gravity, 107, 108 



rotatory power, 110, 111 

 Spermatozoa of fishes, 208 

 Sphaerotilus natans, 308 

 Spirillum desulphuricans, 240, 241 

 Spongin, 209 

 Spore formation, 17 

 Stab culture, 29 

 Stahl, 132 



Staining culture medium, 28, 31 

 Starch, 84, 96, 100, 107, 111, 119, 



120, 122, 124, 125, 161, 16i>, 269 

 Steapsin, 170 

 Stearic acid, 169 

 Stearin, 169 



Stereo-chemical formulae, 78 

 Stereo-isomerism, 90 

 Steriliser, 21 

 Sterility, 21 

 Stoddart, 225 

 Subculture, 30 

 Succinic acid, 154, 155 

 Sucrase, 126 



Sugar, 13, 82, 84, 92, 95, 103, 108, 111, 



113, 121, 122, 128, 133, 138, 



145,148, 155,160, 167,268, 269 



cane, 94 



Sulphates, reduction of, 237, 239, 



240, 241, 244 



Sulphur, 3, 236, 237, 243 ; oxida- 

 tion of, 241 

 springs, 243 

 Sulphuretted hydrogen, 236, 237, 



238, 239, 241, 242, 244 

 Sutton, 289, 290 



TANK treatment of sewage, 283 



Tannery, bating and puering pro- 

 cess in, 157, 211 



Tannin, 177, 251 



Tartaric acid, 27, 29, 87 



Tea, manufacture of, 250-251 ; 

 quality of, 250 



Termeukn, 247 



Tertiary alcohols, 52, 59 

 amine, 59 



