GENERAL INDEX. 
387 
Solar eclipses, total, report on the best 
experimental methods that can he used 
in observing, 1883, 49 
-e 3 'epiece invented by the Rev. W. 
R. Dawes, description of a, 1863, 6 
* - investigations, J. N. Lockyer on 
the results of some recent, 1873,35 
——- and terrestrial meteorological phe¬ 
nomena, Prof. Balfour Stewart and 
W. L. Carpenter on certain short 
periods common to, 1884, 634 
* -photography, with reference to the 
history of the solar surface, Dr. J. 
Janssen on, 1876, 40 
-photosphere, Rev. W. R. Dawes on 
the present aspect of the discussion 
respecting the telescopic appearance of 
the, 1864, 4 
- radiation, report on the best methods 
of recording the direct intensity of, 
1884, 28 ; 1885, 156 ; 1886, 63 ; 1887, 
32 ; 1889 , 40 ; 1890, 144 
--radiation, J. Park Harrison on the 
heat attained by the moon under, 1865, 
17 ; 1866, 20 
- rays, effects of the concentrated, 
upon the tissues of living animals im¬ 
mersed in water, Dr. G. Robinson on 
certain, 1867, 103 
■- rays, catalogue of the oscillation- 
frequencies of, 1878, 37 . ( See ‘Wave¬ 
lengths’ and ‘ Wave-numbers ’) 
- spectroscopy, photographs of the 
invisible in, Dr. C. P. Smyth on, 1890, 
75° 
-spectrum, George Gladstone on the 
atmospheric lines of the, in high lati¬ 
tudes, 1868, 18 
-spectrum, the distribution of energy 
in the, Prof. S. P. Langley on, 1882, 
459 
* -spectrum, map of the, preliminary 
note by J. N. Lockyer on a new, 1874, 
20 
*——- spectrum, recent progress in pho¬ 
tographing the, Prof. H. A. Rowland on, 
1884, 635 
*— spectrum, description of a map 
of the, by Prof. H. A. Rowland, 1887, 
583 
-- spectrum, photographs of the, G. 
Higgs on, 1887, 583 
-spectrum, recent photographs of the 
less refrangible portions of, under dif¬ 
ferent atmospheric conditions, G. Higgs 
on, 1890, 760 
* - spots, J. H. Brown on refraction 
and, 1872, 36 
* - spots observed during the past 
eleven years, Rev. F. Howlett on, 1870, 
23 
--system, chemical constituents of the, 
Dr. J. H. Gladstone on some points con¬ 
nected with the, 1877, 41 
Solar system, the invariable plane of the, 
D. P. Todd on, 1884, 651 
* -system, Prof. Hennessy on meteoric 
showers considered with reference to 
the motion of the, 1866, 21 
-temperature, J. Dewar on recent 
estimates of, 1872, 50 
Sole and other food-fishes, the larval 
and post-larval stages of the, Prof. 
McIntosh on, 1889, 618 
Soleil’s (H.) new micrometer, the Abbe 
Moigno on, 1863, 15 
- tenebroscope, for illustrating the 
invisibility of light, exhibited and 
described by the Abbe Moigno, 1863, 
14 
*Solid mounted preparations, L. C. Miall 
on, 1879, 376 
-states of matter, Prof. J. Thomson 
on relations between the gaseous, the 
liquid and the, 1872, 24 
Sollas (W. J.) on the replacement of 
siliceous skeletons by carbonate of 
lime, 1879, 350 ; *on a sponge from the 
Norwegian coast, simulating a hydroid 
polyp, 377 
-[Prof. W. J.] on the island of Tor- 
ghatten, 1880, 576 ; on a fragment of 
mica schist, 577 ; on a striated stone 
from the Trias of Portishead, 586 ; on 
the action of a lichen on limestone, ib .; 
on sponge-spicules from the Chalk of 
Trimmingham, Norfolk, ib. 
-on the connection between the in¬ 
trusion of volcanic rocks and volcanic 
eruptions, 1881, 613 ; the subject- 
matter of geology and its classification, 
644 
- on the conditions under which cn'di¬ 
nary sedimentary materials may be con¬ 
verted into metamorphic rocks , 1882, 
239 
-on the formatiorf of flints, 1882, 549 
—-— on local scientific societies, 1883, 318 
-on the origin of fresh-water faunas, 
1884, 760 
* -on a sponge possessing tetragonal 
symmetry, with observations on the 
minute structure of the Tetractinellidae, 
1886, 710 
- some preliminary observations on 
the geology of Wicklow and Wexford, 
1887, 708 " 
-and Rev. G. F. Whidborne on some 
fossils of the Inferior Oolite, 1882, 534 
Solly (Rev. H.), technical education, 
1886, 751 
*Solms-Laubach (Count) on Bennet- 
tites, the type of a new group between 
Angiosperms and Gymnosperms, 1887, 
761 
Solubility of isomeric organic compounds. 
Prof. Carnelley and Dr. A. Thomson on 
the, 1887, 647 
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