GENERAL INDEX. 
Atmospheric refraction, Rev. Prof. Chal- 
lis on the augmentation of the ap¬ 
parent diameter of a body by its, 1862, 
12 
- refraction, Stephen Alexander on 
the augmentation of the apparent dia¬ 
meter of a body by its, 1863, 3 
-refraction, Prof. J. Thomson on, of 
inclined rays, and on the path of a 
level ray, 1872, 41 
-tides, the Rev. Prof. Challis on the 
mathematical theory of, 1871, 51 
Atom-grouping in crystals, W. Barlow on, 
1890, 754 (see 1885, 983 ) 
Atomic theory, Dr. I. Ashe on the half of 
the hydrogen atom regarded as an ele¬ 
ment, with models of twenty-five ele* 
ments, 1889, 546 
* - volumes of certain elements and 
the heats of formation of some of their 
compounds, some relations between 
the, W. Weldon on, 1880, 503 
* -volumes, critical points and pres¬ 
sures and their relation to, Prof. Dewar 
on, 1883, 464 
--weight of gold, preliminary notice 
of a re-determination of the, with some 
remarks on the present state of our 
knowledge as to the determination of 
atomic -weights in general, by Prof. J. 
W. Mallet, 1887, 635 
---weight- of oxygen, Dr. A. Scott on 
the, 1888, 631 
—- weight of zirconium, Dr. G. H. 
Bailey on the, 1887, 636 
* -weights of the elements, J. A. R. 
Newlands on relations among the, 1876, 
66 
* -weights of the elements, some re¬ 
lations between the numbers express¬ 
ing the, W. Weldon on, 1879, 293 
* -weights of manganese, oxygen, and 
silver, Prof. J. Dewar and A. Scott on 
the determination of the relative, 1881, 
596 
*--- weights, the logarithmic law of, 
Dr. G. J. Stoney on the proof of, 1888, 
562 
* -weights, the logarithmic law and 
its connection with the, Dr. G. J. Stoney 
on, 1888, 630 
Atoms, an approximate determination of 
the absolute amounts of the weights of 
the chemical, Dr. G. J. Stoney on, 1885, 
987 
Atropa rhomboidea , Prof. J. H. Balfour 
on the properties of, in connection 
with its botanical character, 1868, 89 
Atropine, the action of, on the secretion 
of the kidney and its evidence as to the 
mechanism of secretion, J. McGregor- 
Robertson on, 1885, 1075 
■-Prof. Ladenburg on the constitution 
of, 1887, 647 
Attfield (Dr. J.) on the assay of coal, 
«fcc., for crude paraffin oil, and of crude 
oil and petroleum for spirit, photogen, 
lubricating oil. and paraffin, 1866, 33 
Attiiey (Thomas) and A. HANCOCK on 
some curious fossil fungi from the 
black shale of the Northumberland 
coal-field, 1869, 114 
* -and J. W. Kirkby on some fish- 
remains that have occurred in the Coal 
Measures of Durham and Northumber¬ 
land, 1863, 191 
*Attwood (C.) on some [geological] facts 
observed in Weardale, 1863, 64 
Atwater (Prof. W. O.) on the assimila¬ 
tion of atmospheric nitrogen by plants, 
1881, 6 S 5 
*Atya sjnnipes, Prof. R. 0. Cunningham 
on, and on an undescribed Pontonia, 
1871, 137 
*Atypus nif/er, a Florida spider, Dr. 
McCook on the nesting habit of the, 
1887, 759 
Auckland, New Zealand, W. Lauder 
Lindsay on the geology of the gold¬ 
fields of, 1862. 80 
Aulopora araclmoidea, description of, by 
Dr. H. A. Nicholson, 1871, 90 
Aur&s Mountains, exploration of the, by 
Lieut.-Col. R. L. Playfair, 1875, 195 
Auriferous limestone at Walton, W. W. 
Stoddart on, 1875, 81 
* -quartz of Nova Scotia, the geo- 
gnostic relations of the, Ii. C. Salmon 
on, 1861, 191 
Auroral experiments in Lapland, Lem- 
strom’s recent, J. R. Capron on, 1883, 
439 
* Auroras, two brilliant, in Canada, some 
facts relating to, Dr. LIurlbert on, 1862, 
195 
Australia, the Hon. J. Baker on, including 
the recent explorations of Mr. J. 
McDouall Stuart, 1861, 184 
* -- aborigines of, John Crawfurd on 
the animal and vegetable food of the, 
1867, 114 
-aborigines of, the plq^sical and men¬ 
tal characteristics of the, C. S. Wake 
on, 1870, 157 
* -aborigines cf, Prof. A. Macalister 
on the anatomy of, 1886, 845 
-aborigines of, notes on the, by J. W. 
Faw-cett, 1890. 970 
* -autochthony in, W. Forster on, 
1880, 620 
* -biological investigations in, W. H. 
Caldwell on the progress of his, 1884, 
768 
-British race in, Dr. MacLaurin on 
the, 1889, 786 
-- crime in, W. Westgarth on, 1864, 180 
* -exploration of, Dr. G. Neumayer’s 
scheme for a scientific, 1869, 165 
