GENERAL INDEX. 
177 
Glacial periods, former, in the northern 
hemisphere, the improbability that 
they were due to eccentricity of the 
•earth’s orbit, and to its winter peri¬ 
helion in the north, W. F. Stanley on, 
1884, 723 
* -phenomena in the central district 
of England, Rev. H. W. Crosskey on 
the, 1870, 72 
-phenomena of the Isle of Man, P. F. 
Kendall on the, 1890, 807 
- phenomena of the Midland, district, 
Dr. Crosskey on the , 1886, 224 
-- and Post-Glacial deposits in the 
neighbourhood of Llandudno, H. F. 
Hall on the, 1870, 72 
- and Post-Glacial structure of Nor¬ 
folk and Suffolk, S. V. Wood, jun.,and 
F. W. Harmer on the, 1868, 80 
-sections at York, and their relation 
to the later deposits, J. E. Clark on, 
1881, 614 
* -shell-beds of the Carse of Gowrie, 
Rev. W. H. Crosskey on the relation 
of the, to those in the West of Scot¬ 
land, 1867, 58 
-shell-beds at Bridlington and Dim- 
lington, G. W. Lamplugh on, 1881, 616 
-strim lately exposed at Portmadoc, 
J. E. Lee on remarkable, 1869, 95 
-views, the extreme, of Agassiz and 
his scholars, a criticism of the, by H. H. 
Howarth, 1889, 589 
Glaciated rock-surfaces of the Yorkshire 
coast, G. W. Lamplugh on the boulders 
and, 1890, 797 
Glaciation, the direction of, as ascertained 
by the form of the striae, Prof. H. C. 
Lewis on, 1885, 1019 
-- of North America, Great Britain, 
and Ireland, comparative studies upon 
the, by Prof. H. C. Lewis, 1886, 632 
-of Ireland, and the tradition of 
Lough Lurgan, W. M. Williams on the, 
1878, 528 
Glacier, l’ancien, Charles Martins et E. 
Collomb sur, de la vallee d’Argeles, 
dans les Pyrenees, 1867, 66 
• -kames, marginal, Prof. H. C. Lewis 
on, 1884, 720 
- phenomena of the valley of the 
Upper Indus, Capt. Godwin-Austen on 
the, 1862, 67 
• - system in S. Norway, Charles M. 
Doughty on the Yostedal Brae, 1864, 
143 
Glaciers, formation of, and Boulder-Clays, 
Rev. J. Gunn on the agency of the 
alternate elevation and subsidence of 
the land in the, 1871, 100 
--active and extinct, in South Green¬ 
land, Col. Shaffner on, 1861, 198 
-Col. T. G. Montgomerie on Hima¬ 
layan, 1875, 193 
Glaciers, North and East of Llangollen,W. 
Mattieu Williams on the ancient, and 
more particularly of the neighbourhood 
of the Hope Mountain, 1865, 77 
-- Rev. G. Browne on the prismatic 
formation of ice in ice-caves and, 1864, 
24 , *52 
Gladstone (G.), observations on the 
atmospheric lines of the solar spectrum 
in high latitudes, 1868, 18 
• -microscopical observations at Mun¬ 
ster am Stein, 1869, 112 
• -on the dust thrown up by Vesuvius 
during the late eruption, 1872, 74 
-on the refraction of fluorine, 1885, 
970 
- and Dr. J. H. Gladstone on an 
aluminous mineral from the Upper 
Chalk near Brighton, 1861, 79 
-on the refraction and dispersion of 
fluorbenzene and allied compounds, 
1890, 772 
-(Dr. J. H,), report on observations 
of luminous meteors, 1861, 1 
-on the distribution of fog around 
the British Isles, 1861, 57 ; 1862, 31 ; 
on the emission and absorption of rays 
of light by certain gases, 79 
-- on the essential oil of bay and other 
aromatic oils, 1862, 43 ; on the means 
of observing the lines of the solar spec¬ 
trum due to the terrestrial atmosphere, 
ib. 
- report on the application of gun¬ 
cotton to warlike purposes, 1863. 1 ; 1865, 
264 ; report on fog-signals, 1863, 105 
-on specific refractive energy, 1863, 
12 ; on fogs, 21 
-on the transmission of the red ray 
by many coloured solutions, 1864, n 
- report on the transmission of sound 
under water , 1865, 192 ; 1866, 212 
- on the refraction equivalent of 
carbon, 1865, 11 
-on dispersion-equivalents, 1866, 10 ; 
on the refraction- and dispersion- 
equivalents of chlorine, bromine, and 
iodine, 37 
- on the refraction-equivalents of 
salts in solution, 1867, 34 
-on the value of the hollow wedge in 
examining absorption spectra, 1868, 
18 ; on refraction-equivalents and 
chemical theories, 37 
-on the relation between the specific 
refractive energies and the combining 
proportions of metals, 1869, 22 
-on reciprocal decomposition viewed 
with reference to time, 1870, 57 
-on crystals of silver, 1871, 70 
- on the chemical constitution and 
optical properties of essential oils, 1872, 
311 ; 1873,214; 1874,17 
- on the determination of high tcm- 
N 
