Hansen, E. Chr.-Continued.

On the circulation of yeast in
nature, 246.

Description of yeast species, 249.
On Anixiopsis stercoraria, 272.
Description of Torula species, 290.
On Saccharomyces apiculatus, 295.
Mycoderma, 296.

Monilia candida, 298.

Oidium lactis, 303.

Investigation of growth, methods of,

92.
Involution forms, 322.

Iodine-potassium iodide solution, 92.
Iodine tincture, 92.
Irmisch, 246.

Janczewski, 283.

326, 333.

Jensen, 164.

J.

Kukla, 243, 296.

Immersion, 25.

I.

liquids, bottles for, 35.

Imperfect fungi, 289.

Inoculation methods, 93.

Kupfer, 328.

Küster, 188.

Kützing, 2, 5, 192, 333.

Intergrowth, 287, 303.

Invertase, 301.

Invertin, 2, 301.

Lactic acid, application of, in spirit

manufacture, 168, 328.

Manure, 86.

Marx, 163, 164, 258.

Mass cultures, pure, 100.

Mazun, 267, 264.

Oidium, 299.

lactis, 303, 267.

Pink yeast, 294.

Pipettes, 70.

Plasmolysis, 313.

Plate cultures (after Koch), 11, 103.
Platinum brush, 71.

Pombe, 269.

Portele, 164, 255.

Potatoes, 86, 103.

P.

Panum's thermostat, 39..

Pasteur, 3, 5, 6, 7, 15, 54, 112, 192,
215, 247, 281, 289, 325, 334, 335,
343, 349.
flasks, 54.

working with, 93.
Pasteur's theory of fermentation, 3,
7, 215.

physiological pure culture
method, 112.

purification of brewery yeast, 6.
tartaric acid method, 6, 112.
Pasteurisation, 6.

Pedersen, R., 193, 216.

Pediococcus, 331, 325, 327.

acidi lactici, 331.

cerevisiæ, 331.

sarcinæformis, 331.

viscosus, 331.

Penicillium, 116, 125, 150, 186, 273,

278.

crustaceum, 278.

glaucum, 125, 150, 278.

luteum, 278.

sacchari, 278.

Perisporaceæ, 170, 271.

Perithecium, 271.

formation by aspergillus, 275.

penicillium, 280.

Permanent preparations, 87.

varieties, 236.

Permeability of cell membrane, 217.

Perosmic acid, 92.

Persoon, 2, 249.

Prazmowski, 318, 344.

Preparation making, 86.

Preservation methods, 114.
Pressure vessel, 52.

Prior, E., 59, 217, 220, 224, 273, 296.
Prior's vessel, 59, 77.
Promycelium, 207.

Propagation, modes of, of yeast, 191.
Proteolysis, 214.

Protoplasm of the yeast cell, 188.
Pure culture, natural, of Delbrück,
232.

-

anomalus, 195, 205, 207, 218, 228,
238, 262.

var. belgicus, 250, 264.

apiculatus, 102, 143, 193, 230, 246,
294.

Aquifolii, 260.
Bailii, 265.
cartilaginosus, 266.

cerevisiæ, 102, 225, 230.

I., 194, 195, 198, 205, 207, 209,
221, 224, 231, 240, 251.
ellipsoideus I., 257, 194, 195, 198,
202, 207, 217, 218, 221, 238, 250.
II., 258, 195, 198, 207, 217, 218,
221, 224, 229, 238, 250.
exiguus, 262, 212, 226, 250.
farinosus, 250, 265.

fragilis, 266, 214, 250.

Hansenii, 218.

hyalosporus, 265, 205, 250.
Ilicis, 259.

Saccharomyces Ludwigii, 267, 200,
207, 212, 227, 235, 236, 237, 238,
250.

mali Duclauxi, 265, 250.
Marxianus, 261, 194, 200, 205, 212,
228, 236, 250.

membranæfaciens, 264, 265, 195,

213, 228, 236, 238, 250.
II. and III., 265.

var. californicus, 265.
tauricus, 265.

mycoderma, 296.

n. sp., 250.

Pastorianus, 8, 102.

I., 254, 194, 195, 198, 207, 210,
217, 218, 221, 226, 228, 231,
235, 237, 238.

II., 255, 194, 195, 198, 202, 207,

217, 218, 234, 238.

III., 256, 194, 195, 198, 203,
207, 217, 218, 221, 229, 231,
238.
pyriformis, 261, 225.
Saturnus, 250.

Vordermanni, 260.

Saccharomycetes, 170, 186.

-

-

- budding of, 191.

cell wall of, 189.

chemical constituents of the cell,

211.

circulation of, in nature, 246.
colony formation of, on solid
culture media, 202.

effect of drying, 224, 227.

heat on the, 224.
light on the, 225.

oxygen on the, 214.

ferments contained by the, 212.
film formation of the, 125.
germination of the spores of, 203.
independent fungi, 186.
influence of chemical factors on
the, 222.

physical factors on the, 224.
modes of propagation of, 191.
mycelium formation of, 200.
resting cells of, 201.

spore formation of, 203, 121.
sporeless varieties of, 136, 236.
structure and shape of cell, 187.
variation of, 233.

vitality of, 227.

Saccharose solutions, 80.

method of preservation, 114.

Saké, 277.

Sand bath, 52.

Sarcina, 331, 150, 154, 267, 327, 328.

alba, 332.