116 
GENERAL INDEX. 
Diprotodon Australis, the discovery of, 
in tropical Western Australia (Kimber¬ 
ley district), E. T. Hardman on, 1886, 
671 
*Dircks (H.) on steam-boiler explosions, 
with suggestions for their investiga¬ 
tion, 1866 , 141 
-- on a uniformity of weights and mea¬ 
sures, 1868. 484 ; 1869, 308 ; 1870, 232 ; 
1871, 198 
* - on patent monopoly as affecting 
the encouragement, improvement, and 
progress of science, arts, and manu¬ 
factures, 1868, 159 
--on statistics of invention illustra¬ 
ting the policy of a Patent Law, 1869, 
182 
Disappearance of native plants from their 
local habitats, report on the , 1887, 130 ; 
1889, 435 ; 1890, 465 
Discount, Prof. Henry Fawcett on the 
causes which produce the present high 
rate of, 1864, 165 
* -Prof. Leone Levi on the state and 
prospect of the rate of, w T ith reference 
to the recent monetary crisis, 1866, 131 
Disease, Alfred Haviland on the hour of 
death in acute and chronic, 1864, 123 
-graft theory of, Dr. J. Ross on the, 
1872, 152 
Disinfectants, Drs. E. Schunck, R. A. 
Smith, and H. E. Roscoe on the manu¬ 
facture of, 1861, 127 
-H. B. Condy on, 1863, 40 
Disinfection, William Crookes on, 1866,34 
Disintegrating wheat, T. Carr on a new 
mill for, 1871, 233 
Disintegrator, Carr’s, F. J. Bramw r ell on 
some experiments upon a, 1871, 229 
Dispersion and refraction in certain 
metals, H. E. J. G. du Bois and H. 
Rubens on, 1890, 728 
Dispersion-equivalents, Dr. J. H. Glad¬ 
stone and Rev. T. P. Dale on, 1866, 10 
* . and constitutional formula, Dr. J. 
H. Gladstone on, 1887, 660 
Disruptive discharge in air, the effect of 
variation of pressure on the length of, 
J. E. H. Gordon on, 1878, 433 
Dissection, preservation of the larger 
animals for, F. Greenwood on the, 1875, 
167 
Dissipative systems, a theorem relating 
to the time-moduli of, by Lord Ray¬ 
leigh, 1885, 911 
Dissociation, evaporation and, Prof. W. 
Ramsay and Dr. S. Young on, 1884, 675 
- and contact-action, by Rev. A. 
Irving, 1886, 577 
-Rev. A. Irving on, 1888, 630 
- theory of electrolysis, reply to Prof. 
Armstrong's criticisms regarding the, 
by S. Arrhenius, 1888, 352 ; note 
thereon, by Prof. H. E. Armstrong, 355 
Dissociation of molecules by heat, C. R. 
C. Tichborne on the, 1871, 81 
Dissolutions salines tr'es etendues, sur la 
conductilnlite electrigue des, par E. 
Bouty, 1886, 350 
Distance, theory of, W. K. Clifford on 
the, 1869, 9 
Distant (Mr.) on the work of the Anthro¬ 
pometric Committee , 1878, 152 
Distichopora, S. J. Hickson on the male 
gonangia of, 1890, 864 
Distillation, Prof. Wanklvn on fractional, 
1863, 58 
-of gas from cannel-coal, Dr. Ste¬ 
venson Macadam on the economic, 
1869, 69 
Distribution of animal life. A. R. Wallace 
on the geographical, 1863, 108 
Distribution, the pure theory of, A. Berry 
on, 1890, 923 
Dithyrocaris, H. Woodward and R. 
Etheridge, jun., on some specimens of, 
from the Carboniferous Limestone 
series, East Kilbride, and from the 
Old Red Sandstone (?) of Lanarkshire, 
1873, 92 
Dittmar (W.) on the vapour-tension of 
formiate of ethyl and of acetate of 
methyl, 1868 , 36 
* -on the proximate analysis of coal- 
gas : remarks on Reboul’s paper on 
pyro-tartaric acid, 1876, 63 
- on the best means for the development 
of light from coal-gas, 1878, 108 ; 1880, 
241 
*Diurnal variations of the barometer and 
wind in Mauritius, C. Meldrum on the, 
1877, 39 
Divers (Prof. E.) on the sodium-alum of 
Japan, 1881, 586 ; on the occurrence of 
selenium and tellurium in Japan, ib.; 
on the chrome iron ore of Japan, 587 
-and M. Shimosk on the occurrence 
of tellurium and selenium in Japan, 
1882, 487 
* -and T. Nakamura, an apparently 
new hydrocarbon distilled from 
Japanese petroleum, 1885, 975 
Divers, F. Galton on spectacles for, 
1865, 10 
Diving animals, Prof. Rolleston on cer¬ 
tain modifications in the structure of, 
1862, 118 
Division-remainders in arithmetic, W. 
H. Walenn on, 1876, 30 
*Dixox (E. M.) on an apparatus for the 
analysis of impurities in the atmo¬ 
sphere, 1876 , 63 
-(E. T.) on geometry of four dimen¬ 
sions, 1888, 618 
-(H. B.) on the influence of water on 
the union of carbonic oxide with 
oxygen at high temperatures, 1880, 503 
.— f the influence of aqueous vapour on 
