ion capsules, 357
subcutaneous, 353
syringe, 344

Inoculum, character of, 346
preparation of, 346

Inosite-free media--bouillon (Durham), 183

Inseparate toxins, 144

Intermittent sterilisation, 36

Intracellular toxins, 144

Intracerebral inoculation, 362

Intracranial inoculation, 360

Intragastric inoculation, large animals, 367
Marks method, 367

Intramuscular inoculation, 355

Intraocular inoculation, 362

Intraperitoneal inoculation, 355

Intrapulmonary inoculation, 363

Intravenous inoculation, 363

In vacuo anaerobia cultures, 289

Invertin enzymes, tests for, 279

Involution forms, 137

Iodine solution, 108

Iron bouillon, 185
peptone solution (Pakes), 185

Isolation by animal experiments, 258
by differential atmosphere, 257
incubation, 255
media, 255
sterilisation, 256
by dilution, 248
by plate cultures, 250
subcultures, preparation of, 254

Jeffer's counting disc, 424

Jenner's stain, 97

Jores' mounting fluid, 405

Kaiserling fixing solution, 405

Kanthack's serum agar, 211

Killed cultivations, 318

Kipp's hydrogen apparatus, 242

Kitasato's serum flask, 6

Klebs-Loeffler bacillus in milk, 452

Koch's steam steriliser, 34

Kohle's culture flask, 4

Lab enzymes, test for, 279

Laboratory animals, 335
comparative haematocytology of, 374
normal temperature, 372
regulations, 1

Lactose litmus agar (Wurtz), 203
bouillon, 203
gelatine (Wurtz), 203

Lakmus Molke, 203

Lang's solution, 82

Lead bouillon, 185
peptone solution, 186

Leishman's stain, 98
for sections, 125

Lemco broth, 163

Leptothrix, morphology, 133

Lethal dose, minimal, 316

Leviditi's staining method, 124

Light, action of, 308

Liquefiable media, 147

Liquid soap, 346

Lithium carmine, 96

Litmus bouillon, 186
gelatine, 202
milk cultures, description of, 272
preparation of, 172
nutrose agar (Drigalski-Conradi), 205
whey, 195
agar, 196
gelatine, 196
(Petruschky), 195

Local anaesthetics, 345
reaction to infection, 372

Locomotive movement, 80

Loeffler's capsule stain, 103
serum, 208

Lophotrichous bacilli, 136

Lorrain Smith electric warm stage, 59
serum, 208

Lugol's solution, to prepare, 108

Lysol, 27

MacConkey's capsule stain, 99
media, 180, 199, 205

MacCrorrie's capsule stain, 103

Macroscopical examination of cultures, 261

Malachite green aga