316 
DALTON, 5 
Darwin, 22,26, 27; 31 
Daylight, diffuse, influence of, 235- 
237 
Death-point, of Bacillus spores, 71- 
74; of Bacteria, 56-66; of Fungus 
spores, 65, 73; of Infusoria, 55 ; of 
Micrococci, Streptococci, and 
Staphylococci, 86; of seeds and 
eggs, 45-52; of Torulz, 62 
Debierne, 17 
Democritus, 4 
Diffuse daylight, influence of, 235-237 
Diphtheria, origin of epidemic of, 
302 
Diphtheria and scarlet fever, 303 
Discontinuous heating, 217 
Discussion with M. Pasteur, 152-158 
Disintegration of atoms, 15 
Dissociated elements in stars, 15 
Distilled water, organisms in, 230 
Duhamel, 46 
Dumas, M., 158-166 
Duncan, Prof. Kennedy, I1, 13, 19 
EBULLITION, sealing during, 91 
Eggs and seeds, thermal death-point 
of, 45-52 
Eidam, Dr, 129 
Electrons, 6, 13, 15, 18, 22 
Elements, evolution of, 20, 23 
Emanation of radium, 16 
Ether, 18, 22 
Evolution hypothesis, 292, 296 
Evolution, inorganic, 10, 19; of 
elements, 20; organic, 19 
Experimental conditions, nature of, 
36; disadvantages of, 37; fallacies 
to be guarded against, 37 
Experimental results, general inter- 
pretation of, 279 
Experimental tube, 233 
Experiments concerning Archebiosis, 
41; organisms found, 42 
Experiments of Prof. Tyndall, 209- 
228 
Experiments with airless flasks, 137- 
145; with beer-wort, 194; with 
cucumber infusion, 195; with hay 
infusion, 101-103; with milk, 195; 
with potato infusion, 195; with sal- 
ine solutions, 230-282; new, with 
sodium silicate, 243-282; old, with 
sodium silicate, 241; with sea-water, 
276; with turnip and cheese, 100- 
THE EVOLUTION OF LIFE 

106; with urine, 193; with urine 
and liquor potassz, 130-150 
Explosive compounds, 17 
FERMENTATION caused by liquor 
potassze, 150; delayed by acids, 116- 
118; favoured by potash, 116-118; 
signs of, in superheated fluids, 196- 
206 ; stimulated by oxygen, 145 
Fertility of boiled neutral fluids, cause 
of, 133+150, 167, I9I 
Flasks plugged with cotton wool, 145 
Fray, 189 
Fremy, 162, 165 
Fungus germs, death-point of, 65, 73 
GENERATING fluids, 58, 86, 312 
Genesis of elements, 23; of living 
matter, 20, 23 
Gerhardt, 116, 123 
Germs in air, 39-41, 272; in water, 
41; invisible, 35, 51, 70, 283; of 
fungi, death-point of, 65, 73; of 
mould, 65 
Gruithuisen, 63 
HARMLESS organisms, 297, 306 
Hankin and Yersin, 304 
Hartley, W. N., 112 
Hay bacillus, spores of, 70; death- 
point of, 71-74, 75-86, 209 
Hay infusion, experiments with, Io1, 
103; superheated, experiments 
with, 194 
Helium, 16 
Helmholtz, Prof., 24 
Hemming, G. W., 59, 161, 221-228 
Heredity, not operative in crystals, 
290 ; nor in lowest organisms, 290, 
397 
Heterogenetic origin of Infusoria, 292 ; 
supporting evidence of, 292; of 
Bacteria, 285-288; motionless 
particles first appear, 288 
Heterogenesis, xiv-xvill, 293 
High incubating temperatures, 128-130 
Hoffmann, 74 
Horwath, Dr, 62 
.Hot springs, confervz of, 53 
Hueppe, Prof., 300, 311 
Hueter, Prof., 299 
Huizinga, Prof., 107-109, 114, 181, 
139,227, 225 
Huxley, Prof., 28, 31, 33, 43, 96, 110- 
115, 208, 22 

