GENERAL INDEX. 
39 L 
Spectre atmospherique terrestre, Dr. J. 
Janssen sur le, et celui clc la vapour 
d’eau, 1866, n 
- photograpliique solaire, le maxi¬ 
mum d’intensity du, Dr. J. Janssen sur, 
1879, 252 
-de la vapeur d’eau, Dr. J. Janssen 
sur le, 1869, 67 
Spectres de l’oxygene, Dr. J. Janssen sur 
les, 1888, 547 
- photograpliiques, la constitution 
des, quand faction lumineuse est ex- 
tremement courte, Dr. J. Janssen sur, 
1878, 445 
Spectrometry, stellar, Paclrc Seeeld on, 
1868, 165 
Spectroscope, automatically adjusted for 
the minimum angle of deviation for 
the particular ray under examination, 
J. Browning on a. 1870, 52 
-a binocular, G. J. Stoncy on, 1879, 
292 
- with bisulphide of carbon prisms 
and telescopes of long focal distance 
for examining the sun’s spectrum, J. P. 
Gassiot on a, 1864, 11 
--- direct vision. J. Browning on a new 
form of, 1864, 9 
-an overlapping, J. Love on, 1881, 
564 
-slit for the, S. C. Tisley on a new and 
simple form of adjustable, 1874, 27 
- with two-prism automatic motion, 
a simple, G. J. Stoney on, 1879, 292 
- without a lens, P. Braham on a, 
1889, 544 
*-of unusually large aperture, G. J. 
Stoney on a, 1878, 441 
-- observations on animal substances 
with the, E. Bay Lankester on, 1867, 
101 
- E. Pay Lankester on the investiga¬ 
tion of animal substances with the, 1868, 
113 
Spectroscope de poclie, Dr. J. Janssen 
sur le, 1866, 10 
Spectroscopes, scales of variable length 
for the eye-pieces of, G. J. Stoney on, 
1879, 292 
Spectroscopic appliances, Prof. A. Schus¬ 
ter on some, 1883, 400 
-dispersion, the use of bisulphide of 
carbon prisms for cases of extreme, 
and their results in gaseous spectra, 
Profs. C. P. Smyth and A. S. Herschel 
on, 1885, 942 
- studies of explosions, by Profs. 
Liveing and Dewar, 1884, 672 
Spectroscopy, the bibliography of, report 
on, 1881, 328 ; 1884, 295 ; 1889, 344 ; 
*1890, 261 
-solar, in the infra red, Dr. D. Draper 
on, 1885, 936 
Spectrum, absorption, of chlorochromic 
anhydride, G. J. Stoney and Prof. J. E. 
Reynolds on the, 1878, 434 , *511 
Spectrum, absorption, of didymium chlo¬ 
ride. Prof. A. Schuster and T. G. Bailey 
on the, 1883, 400 
-absorption, of oxygen, Profs. Live¬ 
ing and Dewar on the, 1888, 576 
—— analysis, William Huggins on the 
results of, as applied to heavenly bodies, 
1868, 140 ; of the moon, 142 ; Jupiter, 
143 ; Saturn, ib.\ Mars,ib.; Brorsen’s 
comet, 159 ; Comet II. 1868, 160 ; Nep¬ 
tune, 165 
-of Comet (Wells) I. 1882, W. Hug¬ 
gins on the photographic, 1882, 442 
-—- of the great nebula in Orion, W. 
Huggins on the photographic, 1882,443 
— of comet ‘ b ’ 1881, W. Huggins on 
the photographic, 1881, 520 
- of the stella nova visible on the 
great nebula in Andromeda, Dr. W. 
Huggins on the, 1885, 935 
- analysis, report on the present state 
of our knowledge of, 1880, 258 ; 1881, 
317 ; 1882, 120 ; 1884 , 295 ; 1889 , 344 ; 
1890 ,26 i. Contents: 
1. Spectra of metalloids, by Hr. A. 
Schuster, 1880, 258 
2 . Influence of temperature and pres¬ 
sure on the spectra of gases, by Dr. 
Schuster, 275 
3. Emission spectra of rays of high 
rcf rang Unlity, by Prof. W. N. Hart¬ 
ley, 298 
4. Absorption spectra of rays of high 
refrangibility, by Prof. Huntingdon, 
3°3 
1 . General methods of observing and 
mapping spectra, by W. Marshall 
Watts, 1881, 317 
2 . Papers connected with spectrum 
analysis published since 1870, 1881, 
328 
The genesis of spectra, by Dr. A. 
Schuster, 1882, 120 
I. Connection between the different 
periods of vibration of one molecule, 
121 
II. Relation of the spectrum of an 
element to that of its compounds, 
127 
III. Relations of the spectra of dif¬ 
ferent elements, 138 
Continuation of list of papers connected 
with spectrum analysis, 1884, 295 ; 
1889 , 344 ; 1890, 261 
*-analysis, recent progress in the use 
of concave gratings for, Prof. H. A. 
Rowland on, 1888, 566 
—— analysis, J. Browning on an induc¬ 
tion coil especially arranged for use in, 
1870, 25 
- the complementarv, J. Smith on, 
1862, 23 
