INDEX TO VOLUMES I-X. 
149 
Page. 
Hydrometer employed to determine specific 
gravity.....vi 26 
Hygrometers....viii 25 
Hygrometric observations.vi 36 
Hymers, J., cited on Malfatti’s problem.li 118 
Hyperion, Orbit of.Hi 26, 40, x 90,104 
Hypothesis, Use of..ii 164, vi xxxiii 
Hypsometry, Barometric.v 48 
New method of...ii 131 
Ice fields, Anticlinal and synclinal axes 
in.ii (22) 
pyramids.vii 6 
Iddings, J. P., communication on the col¬ 
umnar structure in the diabase of 
Orange Mountain, N. J. Abstract. 4 
figures .viii 19 
Illinois, Flora of.iv 99 
Illiteracy and rainfall.i 68 
Illumination of objects for examination with 
certain immersion objectives.ii 126 
Images of stars.ix 15 
Impressions on polished glass..ii 39 
Indexing scientific literature.x 38 
Indian explanation of gravitation.vi xxxi 
Indians as observers of nature.vii 73 
Errors respecting.ii 175 
(See also Anthropology.) 
Inductive reasoning.vii lii 
Inertia. vii 48 
Infinite and infinitesimal quantities.vi 133 
attraction...ii 19, viii 58 
Ingestion among fishes.iii 116 
Initial meridian. Proposed.vi 106 
Inoculation of diphtheria.iv 38 
through mosquitoes.vi 5 
Insecticides.vii 10 
Insectivorous mammals.v 118 
Institutions, Evolution of.vi xlviii 
Integrals, Elliptic.vii 102, ix 54 
Integration of differential equations admit¬ 
ting periodic integrals.x 100 
Interior angle of objective.iii 19 
Intermarriage of the deaf..vi 83 
International coinage.iii 38 
convention of teachers of the deaf and 
dumb.iv 55 
Geodetic Association on standard time..vi 106 
scientific telegrams.i 101 
symbols for archteologic charts.ii 72 
Intervals, Musical..ii 199 
Investigation, Methods of..ii 163 
Iowa, Loess and drainage system of.vi 93 
Quaternary of.iv 120 
Irby, J. R. M,, communication on the crys- 
» talline state of matter. Abstract .iii 39 
Page. 
Irving, R. D., communication on the en¬ 
largement of mineral fragments as a 
factor in rock alteration. Title only..ijc. 16 
Isogram.x 4 
Isoseismal map.ix 37, 39 
Ivory, James, cited on action at no dis¬ 
tance.V 161 
/ 
Jacobi’s method for removing side-coeffi¬ 
cients. viii 41 
notation. vii 103 
Jackson, President, cited on the distribution 
of surplus among the States. vi 103 
Jackson, Dr., letter on autopsy of Agassiz. 
Communicated by J. J. Woodward. No 
abstract . i 93 
Japan, Education in. ii 69 
Japanese coinage. iii 38 
dry painting. viii 16 
Jenkins, T. A., remarks on drifting buojq 
vii 15 
Johnson, A. B., communication on the his¬ 
tory of the light house establishment 
of the United States. Abstract and 
reference .iv 135 
recent investigations by the Light House 
Board on the anomalies of sound from 
fog-signals. In full. 2 maps. lfigure..'v 23 
some peculiar ravages of the Teredo 
navalis. Title only ...v 98 
some eccentricities of ocean currents. 
Abstract ....vii 14 
the difficulty in determining the direc¬ 
tion of sound. Abstract .viii 11 ,12 
Johnson, W. D., communication on a new 
plane table. No abstract .x 9 
What is topography ? Abstract .x 15 
Johnston, Gen., cited on the phenomena of 
sound.ii (48) 
Jones, B., cited on phosphorus and brain 
disease. v 75 
Jones, Rev. George, cited on zodiacal light, 
i (19), (20), (21), (26) 
Journals of mathematics.vi 117 
Judd, F. F., communication on the water¬ 
shed of the Adirondack region. Ab¬ 
stract .ii 67 
the Adirondack watershed. Abstract..\i. 82 
Juke.s, cited on ripple marks.ii 61, 62 
Juvet,-, communication on a time globe. 
Abstract .iii 106 
Kampf, Ferdinand, Death of.ii 189 
Kanab base line.iii 34 
Keith, Reuel, communication on achro¬ 
matic object glasses. Title only .i 73 
