IGS 
PHILOSOPHICAL SOCIETY OF WASHINGTON. 
Page. 
Russell, I. C., communication on—Cont’d. 
the subaerial decay of rocks and the 
origin of the red claj'’ of certain forma- 
i tions. Title only . ix 16 
Russell, Thomas, communication on tem¬ 
peratures at which differences be¬ 
tween mercurial and air thermometers 
are greatest. In full. \ figure . ix 25 
normal barometers. Title only . lx 46 
Russian meteorology. i 75 
Rutherford, cited on computation of tt .i 58 
Sabine, Gen., cited on Plover Bay. iv 125 
St. George Island, Seals on. i 91 
St. Louis directrix. Altitude of. ii 24 
St. Paul Island, Seals on. i 91 
Salinometer. ii 185 
Sand sculpture. i 57 
Sanderson, Dr. Burden, cited on bacteria..!! 109 
Sands, B. F., Death of.. vi 41 
Sandwich Islands, Geology of.. vi 13 
Satellites, Computations concerning. vii 93 
of Mars. ii 181, 186,188,190, vi 45 
Saturn. iil 26, 40 
Uranus. i (30) 
Saturday-Night Club. x 45 
Saturn and its rings. Revolution of. ii 188 
Bright spot on... ii 102 
Rings of. ii 94, 102, 188, vi 41 
Satellites of.. iii 26, 40 
Shadow of.. ii 102 
Saville, J. H., communication on the new 
Japanese coinage. Title only . i 51 
Sawyer, C. J., communication on the Signal 
Service bibliography of meteorology 
and terrestrial magnetism. Read by 
C. Abbe. In full .x 23 
Schaeffer, G. C., Resolutions on the death 
of..*.. i 90 
Schellbach, Prof. K. H., cited on Malfatti’s 
problem. ii 118 
Schools of Japan. ii 69 
Schott, C. A., communication on a new eye¬ 
piece for observing personal equations. 
Title only .. ii 200 
the secular change in the magnetic de¬ 
clination in the United States and at 
some foreign stations. Abstract . iii 45 
remarks on calendars. ii 38 
rigidity of the earth. ii 77 
Sciences, Philosophic order of. v 105 
Present state of... ii 16 
Progress of.. ii 56 
Scientific administrators. ix xliii 
experimentation. ii 163, vii li 
Page. 
Scientific men and their duties.lx xxxv 
Distribution of.. x 7 
method. ii 163, vi xxxiii, vii li 
and social progress. iv 40 
societies. i vi, viii xxxiii 
of Washington, and Professor Baird.x 45 
of Washington, Proposed, federation of, 
V 102 
of Washington, Statistics of.x 29 
work by state aid. viii xli 
Scrope, G. P., cited on columnar structure. 
Viii 24 
Sea level influenced by winds and baro¬ 
metric pressure. i 53 
Seals, Fur-bearing. i 91 
Secchi, Angelo, cited on elasticity.v 130 
Saturn’s rings. vi 43 
Seconds-pendulum formula.vii 101 
Secretaries’ report...vi 111, vii xxiii, viii xxvii, 
ix xxix, X xxxii 
Secular change in magnetic declination. ..iii 45 
perturbations of Polyhymnia by Jupiter, 
viii 54 
Seebach’s method of determining earth¬ 
quake foci.X 17 
Seitz, E. B., cited on Malfatti’s problem. li 118 
Seismology, List of papers on : 
on the earthquake phenomena recently 
experienced in North Carolina. T. L. 
Clingman. Abstract and reference . i 104 
earth tremors as shown by astronomical 
observations. H. M. Paul. Abstract..\.\i. 125 
earth vibrations at Niagara Falls. J. M. 
Toner. Abstract . iv 186 
seismographic record obtained in Japan. 
E. Smith. Title only . vi 87 
Was the earthquake of September 19th 
[1884] felt in the District of Columbia? 
T. Robinson. Abstract . vii 73 
the Flood Rock explosion. F. W. Clarke, 
C. F. Marvin, and H. M. Paul. Ab¬ 
stract . viii 28 
the Charleston earthquake. Symposium. 
Abstract. Map .ix 37, 38 
a recent visit to the scene of the Charles¬ 
ton earthquake and resulting conclu¬ 
sions. C. E. Dutton. Title only .x 16 
on the depth of earthquake foci. C. E. 
Dutton. Title only ..x 17 
the speed of propagation of the Charleston 
earthquake. C. E. Dutton and S. New¬ 
comb. Reference . x 28 
Series for determining the ratio of circum¬ 
ference to diameter. i 57 
Serpent venom. vi 38 
Sewage in soils. iv 38 
