INDEX TO VOLUMES I-X. 
Page. 
Doolittle, M. H., communication on—Cont’d. 
association ratios. Abstract............ x 93, 94 
remarks on sesquisection...........0. sees will 52 
gravitation formula .......... 
phonetic alphabet............. 
bi-metallism...........0s0000 
the need of a biometer 
binary arithmetic 
Dorsey, J. Owen, eee uaietion on the 
gentile system of the Omahas. Jn full. 
EMI CCUER cease csiavet dencsesane transscuestcchelstse? ili 128 
Drainage system and loess of eastern Iowa, 
wi 93 
Olio BIRCKs Hills... ..ssc.vesncoavcetscees coved 125 
BV SUGIN Siren is se sccicce danas cuovaetacauvdssaisscecdss'ee Beearee (49) 
Draper, Prof. J. W., cited on photography...i 47 
ACUTE CT OVLEY .c5cs5 veccacdieve .vosaakscscsdcncees v 135 
Dreams in their relation with psychology..vi 37 
BE EES SRN LTO seg caper ccnsvaacavasdesacurseaceteness vi 94 
Drift of Iowa and Nebraska............cceceeees iv 120 
Dry painting of the Navajos...............000 viii 14 
Duane, Gen., cited on fog signals............ Vv 32, 43 
phenomena of sound,...............0 ii (49), (50) 
Du Bois-Raymond, Experiments in animal 
electricity Dy...........ccesscesssees v 57, 60, 61, 62 
Dudley, P. H., communication on the uses 
of the dynagraph, and the work per- 
formed in determining the resistance 
of trains, ete. Abstract...... Gaaccecanaeee iii 29 
Dulong and Petit, Law of............... v 139 
Thermometric experiments of.......... v 91, 93 
Dumbness of deaf children.................0066 vi 48 
Du Pré, Warren, cited on earthquakes....... i101 
Dutton, C. E., communication on the meas- 
urement of the pressure developed by 
the explosion of gunpowder in fire- 
arms. Title only........ Baad dweracenccertenssces i 52 
some recent experiments on different 
kinds of gunpowder at Fortress Mon- 
OU pa TL ULG. OT sec wneuarcaians tattyasacarscesescoes i 54 
the causes of the elevations and subsi- 
dences of the earth’s surface. Title 
WH rntancesud cestecassotece <eccsicisvatessatssvesecss i 74 
geological time. Title only......... pete eens i 89 
Mallet’s theory of the formation of the 
physical features of the earth. Title 
SUA Ciieteetneatunncensssesensncsasvennsene Geeaccecaetasenc i 90 
recent improvements in the economy of 
fuel. Title only........ sencecsuns cbatois Rereree i 96 
recent improvements in the manufac- 
ture of steel. Title only......ss0r..2000seeees i 97 
the chemistry of the Bessemer process. 
Title only........ Suuevadaseas hack aveuneoseeudseccesess i 98 
the glacial period. Title only........ ..... ii 26 
the causes of glacial climate. Abstract, 
di 43, 45 
133 
Page. 
Dutton, C. E., communication on—Cont’d. 
the geological character of the Colorado 
DUVETS /DULUE OMY ccaccceas ccsciaccecechescuuset lil 28 
the succession of volcanic eruptions. 
TRELE ONY: csntannacnusscsnaccsesacnnsdetevascns iii 36, 37 
the Permian formation of North Amer- 
TCR e ADSUR CEL cswcsssnasvencechesdsusdee .- Add 65, 67 
the silver question. Jn full......... sentkeh 28 
the scenery of the Grand Cajion district. 
Title only... savavancascaatresasnitesnessasccced iv 120 
the Vermilion cliffs and the valley of 
the Virgen in southern Utah. C. E. 
Dutton. Title only........ Beane awatsane ke iv 122 
the geology of the Hawaiian islands. 
AGSENC Cl icccccuconcesniocssues pavenchscenensucneeen vi 13 
the voleanie problem stated. Abstract, 
vi 87 
Whatisaglacier? Abstract.............. vii 39 
the volcanoes and lava fields of New 
MexiCos) AlDStract..casscsccccsvetsttcesse-sg VERON G 
practical geology versus speculative 
physics. Title only... .....0-008 .o0e-.s. Wiad 4, 5 
a recent visit to the scene of the Charles- 
ton earthquake and resulting conclu- 
SION Ss) WLULE OMA icctnsadexcovtsenvccubsvsereones x 16 
the depth of earthquake foci. Abstract. 
VU fiGurre.cccssve Waves venbadesunctosvecnuecsatcenesavect > sane 
the speed of propagation of the Charles- 
ton earthquake. Reference...,...10....... x 28 
remarks on distribution of volcanic ac- 
ML OTscs oven anebvectuvecusarsivcstspetsccasuceuscetetereets i 102 
wind and temperature observations.....ii 18 
Fefraction: Of SOUNG..<..csc-veeccascssvoscecenses ii 58 
geology of the Colorado region............ ii 76 
the earth’s interior..............00 mettsdbercaes ii (77 
charcoal in the Crift...........ssccccecessceees iv 122 
separation of minerals by density......wi 27 
nebular hy pothesis. cack scntsedscssovcerses wi 45 
temperature observation...........:c0 see vi 48 
outlines of continents 24 
SUN! SlOWSsscsesesescesccsveves Wablasvonrsceususeuvy's wii 35 
Indian observation of nature...... dendene vil 74 
earthquake detonations............0.seee viii 28 
Charleston earthquake........... adbcaekee saad ix 42 
Dynabraph, (De icccsieecsssetveorses waveastececucrees iii 29 
Dynamic hypothesis...............ccccesseseee Peon fie. &.%.< 
EHHEOTICS OF LOLCOs s2.sicccccesscsscsstsessuvovssvwanct v 126 
Eastman, J. R., cited on individual vocabu- 
JATIOSsecavsocsncscecceetcattnssecasavenceacueerscecse ii (21) 
communication on a comparison of the 
thermometers used to determine the 
correction for atmospheric refraction 
at the U. S. Naval Observatory. Ab- 
SETAC ocancscnetansonscvs esi dveaatapmeeeen Saasaupadsnen i 68 
