INDEX. 67 
Page. 
Mathematical Section, Officers of...... ........ 36, 37 
— — Rules of....... pabeanses eeSeueatiecktcuseccnetes aodssant? OD 
Matthews, Washington: communication on 
mythological dry painting of the Nava- 
Helicsraccatrarscestrcccdvadosse dd geues Paccons pier cen co. . 14 
—-—-— anthropometric and reaction time 
BPPATALUG... ..rceereseoes aaadanewes Gabe ded suecWaee seers s 25 
McGee, W. J.: communication on the ter- 
races of the Potomac valley..............009+ . 24 
Measurement of temperature at distant 
Ponts (Ditlet Only)? «.Fis.cccts<sacecseesdaevedace we 238 
Mechanism of clicks and clucks (Title only) 18 
Members, Deceased........0..XXV, XXVii, 8, 10, 25 
— List of......... Beeeantes eeaudedunasevensvese cncpetavecce dasen VI 
Mendenhall, T. C.: baidutiadtion on mea- 
surement of temperature at distant 
ROLE GSneteseasuraserisoeskacstcuuane-eravece=srtckenae caine 18 
— Election to membership of........ sou coduceccee 8 
— exhibition of a volt meter 26 
— remarks on reaction time.............. easj, Ot 
Mercury, Mathematical theory of... we 41 
Methods of verifying weather predictions... 8 
Milneria minima........ Beenepnelesesekraresncatees hewces 5 
Modern ideas of brain mechanism (Title 
SEILY:)acuwdarisacascesthessdcosedecccsadecsstacectecnccedcs Seley 
Mollusks, Two remarkable forms of............. 5 
Moser, J. F., Election to membership of...... 12 
Mountain structure........ areas fhekvascktose nave # (18 
Mythological dry painting of the Navajos.... 14 
National Academy of Sciences................. xl, xly 
Navajos, Painting Dy...........css0 Sasatecuctecedavedn 14 
Newtonian formula of gravitation................ 39 
Nine-points circle...........000 Gvereusansecstyendactecede 46 
Odor, Theory of....... auaavasuasece sicerucxesincrsvscexaucs: AAT 
Officers, Election of......... paunnssbovatdnenaces Sperecr) sy 
— of the Mathematical Section............ 00.0... - 36 
— — — Society........ penuveswaveuadassassestutscacnens Xiv, XV 
Orange: Mountain, N. Ji..:-0...0000000sssssees edeseaces reli kt) 
Painting by the Navajos..........ssssscsee . 14 
EPRBRDOUIOUSS CANO! Of; -coscces acseeessnecccsceseaccoce sesso 29 
Paul, H. M.: communication on the earth’s 
MINLETROL pe ccssecedanssuccsessccsesce facctswesweceecosene 17,18 
— — — the Flood Rock explosion................. 28 
— remarks on the earth’s rigidity............... ap ere 
——— dry painting by the Japanese............ 16 
— — — field time determinations 58 
— — — the topophone...............es000. 13 
BGR Ga A Fi:5 DICALD OF; <cccscevsccecsoscccccccoccccsaseccs 10 
Perturbations of Polyhymnia.............:c00ccc008 54 
Physical observations on Wolf’s comet (1884, 
MEN) See sscsccese ses eacedeasnaueanasnncnsstacecsastotentcseec 37 
Poindexter, W. M., Election to membership 
Sotandattusastatansdutnessasnsentksssssavcconuaviseltadesecssel! | 3 
Page. 
Polyhymnia, Perturbations of......... Reecusveantade 54 
Practical geology versus speculative physics 
(Ditle only): .....ste00 Saanexerecnunee Lactounwetcgee 4,5, 6 
President’s address............ aceacca ee eey iadeeees Xxxili 
PSY. CHYOM CLOTS: sisisvscs ssccesvivdvescnatsencresereosecses 25 
Publications, Committee on............ccc00 «Xiv, XV 
Ravené, G. L.: communication on the aste- 
TOUS wtstecceacecane RubawaweaeCdudenwestacperaveraccabs 18, 54 
——-— the theory of Reroure ducenussisazsueesacae 41 
— Election to membership Of...............00s000 « It 
== NEOMATECS) ONGC OMA Les stuseaneauecdsseesss-ncevecites ony LI 
Reaction time apparatus........cccccccccsscsecsceess 25, 27 
Recent experiments on reaction time and 
the time sense (Title only).............ss0000 4 
Report of Secretaries..............00 Coe ee. 4p Dt) | 
— — Treasurer..............008- -- XXVili, 31 
Research, Endowment Of..........:0c00cesscesecessece xli 
Riley, C. V.: communication on the system- 
atic care of pamphlets............sss0+ sosseese 29 
Ritter, F. W. McK.: communications on see- 
ular perturbations by Jupiter......c...ccceeee 54 
Robinson, T.: remarks on the observation 
Of Carthy tremors; sacs. sasccssceseie ee 
— — — Society ...........c00000 
Secretaries, Report of............ 
..XXVIi, 31 
Secular perturbations of Polyhymnia by Jup- 
iter .. ste Srapeerereretseecocrncrrcris) tie! 
Seismometric observation, iets dusreaanvnasseasseansnene 28 
Shumway, W.A., Election to membership of 12 
Signal service investigations of thunder- 
storms... yeaa ase) LO 
—— rules for ipcpatieationn ‘of puedictiona: rap 8 
SUX POMS CITC Oz sscceccenteccostuswsueccstdesoieeeite - 46 
Slight modification of the Newtonian form- 
Wla/Of SYAVICATION scvsscedesccccsussceceesctyees seosey) (09) 
Sling psychrometer 25 
Smelly SONse- Of sa.ccacshoseres cxcckeaece 27 
Societies, American scientific. .............00. Xxxili 
Some practical features of a field time de- 
termination with a meridian transit...... 55 
Sound, Aberration of............. Deconssieacwesssseusenril cele 
Spheroids DistanCes:Onisc..s.0+caccoancs saseccecsecusee 52 
Standing rules of the General Committee... xii 
— — — — Mathematical Section.............. serce OD 
mae mls MO CLO UY case co east ssacceassiscienacscocdesteneace ix 
Switt; GAN; CLL sc. scccsssvoscsacsvosstcesncesseeee cee xl 
Systematic care of pamphlets................000 « 29 
Taylor,W. B.: communication on the crump- 
ling of the earth’S Crust. ....cccc.ccscncceveee wo 18 
—— — geological and physical theories...... 6 
——-— aslight modification of the Newton- 
ian formula of gravitation... .ccceccceee 08 
