1252 
Sedgwick (A.) on the occupation of a 
table at the zoological station at 
Naples, 466; on the aid given by the 
Dominion Government and the Govern- 
" ment of the United States to the en- 
couragement of fisheries, and to the 
investigation of the various forms of 
marine life on the coasts and rivers of 
North America, 479. 
Selenium and sulphur cells, the sensitive- 
ness of, to light, 5. Bidwell on, 981. 
Sextants, the errors of, as indicated by the 
records of the verification department 
of the Kew Observatory, Richmond, 
Surrey, by G. M. Whipple, 936. 
Shaen (W.) on the teaching of science in 
elementary schools, 692. 
Shallow-draught screw-steamers for the 
Nile expedition, J. T. Thornycroft on, 
1193. 
Shaw (Prof. H. S. H.), the sphere and 
roller friction gear, 1193 ; *on Ashton’s 
new power meter, 1203. 
Shell-work, American, and its affinities, 
by Miss A. W. Buckland, 1214. 
Shoolbred (J. N.) on reducing and tabu- 
lating tidal observations in the English 
Channel, made with the Dover tide- 
gauge, and connecting them with obser- 
vations made on the French coast, 60; 
electric lighting at the Forth Bridge 
works, 879. 
Sidgwick (Prof. H.), Address by, to the 
Section of Economic Science and Sta- 
tistics, 1141. 
Sim (Col. E. C.) on the erosion of 
the south-eastern coast of England, 
410; from Beachy Head to Hastings, 
437. 
Sladen (P.) on the occupation of a table 
at the zoological station at Naples, 
466. 
Slaty cleavage and allied rock-structures, 
Alfred Harker on, with special refer- 
ence to the mechanical theories of their 
origin, 813. 
*Slide resistance coils with mercury con- 
tacts, Prof. J. V. Jones on, 907. 
Sliding scales in the coal industry, by 
Prof, J. E. C. Munro, 1173. 
Small (W.), anomalies in the condition 
of Scotch miners in contrast with other 
unskilled labourers, 1174. 
Smith (Prof. C. M.) on atmospheric elec- 
tricity, 899. 
Smith (M. H.) and J. Williams, the 
action of nitrous gases upon amyl 
alcohol, 992. 
Smith (Dr. P.), the preservation and pro- 
longation of life to 100 years, 1079. 
*Smith (W.), the movement of land in 
Aberdeen Bay, 1193. 
Smyth (Prof. C. P.)on Malvern, queen of 
INDEX. 
inland health resorts, and on improved 
hygrometric observations, 922. 
Smyth (Prof. C. P.) and Prof. A. 8. Her- 
schel on the use of bisulphide of car- 
bon prisms for cases of extreme spec- 
troscopic dispersion, and their results 
in gaseous spectra, 942. 
Sodium or other soluble aluminates, the 
use of, for softening and purifying 
hard and impure water and deodoris- 
ing and precipitating sewage, waste 
water from factories, &c., F. M. Lyte 
on, 984. 
Sodium alcoholates, the action of, on 
fumaric and maleic ethers, Prof, Purdie 
on, 972. 
Solar radiation, second report on the best 
methods of recording the direct inten- 
sity of, 156. 
Solutions, report on the investigation of 
certain physical constants of, espe- 
cially the expansion of saline solutions, 
261. 
Sorby (Dr. H. C.) on recent polyzoa, 481. 
*Sowerby’s whale (Mesoplodon bidens), 
some points in the anatomy of, by 
Prof. W. Turner, 1057. 
Spectra of the elements and compounds, 
report on the preparation of a new 
series of wave-length tables of the, 
288. 
Spectroscopy, solar, in the infra red, Dr. 
D. Draper on, 936, 
Spectrum, a pure, the formation of, by 
Newton, G. Griffith on, 940. 
Spectrum of the stella nova visible on 
the great nebula in Andromeda, Dr. W. 
Huggins on the, 935. 
*Spey bridge at Garmouth and the River 
Spey, P. M. Barnett on the, 1203. 
Sphere and roller friction gear, the, by 
Prof. H.S. H. Shaw, 1193. 
Spiller (J.), description of some new crys- 
tallised combinations of copper, zinc, 
and iron sulphates, 976. 
Spiracle of fishes, the, in its relation to 
the head, as developed in the higher 
vertebrates, Prof. Cleland on, 1069. 
*Spirogyra, the division and conjugation 
of, Dr, J. M. Macfarlane on, 1088. 
Staffordshire, the geology, mineralogy, 
and paleontology of, list of works on, 
by W. Whitaker, 780. 
Stanley (W. F.), notes upon the rota- 
tional period of the earth and revolu- 
tion period of the moon deduced from 
the nebular hypothesis of Laplace, 915; 
proposed conditions to account for a 
former glacial period in Great Britain, 
existing under similar meteorological 
conditions to those that rule at the 
present time, 1020 ; a portable scale of 
proportions of the human body, 1206. 
