166 
Page. 
Hazen, H. A.: communication on Thermo- 
Meter CXPOSULC....seeeereee Gonsceass see! aeeaeipse 46, 47 
Hilgard, J. E.: organization of the Mathe- 
Matical Section .....cccecseccccerereeeeesreerereenee 
— — —: remarks on the unification of longi- 
tudes and time 
Hill, G. W.: communication on Certain possi- 
ble abbreviations in the computation of 
the long-period perturbations of the 
moon’s motion due to the direct action 
109 
Prrererirrri i 
of the planets........ eccadied eet. Ae enrnacn seo) 180 
— — —: remarks on infinitesimals ..........++ 135 
—, Moritz: cited on natural language............ 80 
— — — — the education of deaf mutes........ 78 
---- value of sign language to the 
Geaf ... cscs suostcceeccarstscecastueccesesons edanses 80, 85 
FLOMOPhe neS......sseceeessneeccecseneeceeececeeeeraneees 57, 76 
Hough, F. B.: communication on the culti- 
vation of the Eucalyptus on the Roman 
Cam pagna ......+« Sc abaucs'scnadsabendee@uasuveecuesuvnnse 36 
Hubbard, G. G.: remarks on fallacies con- 
cerning the deaf........sssscseseseeeeees Sees 82 
Humidity observations..........-sss0 Ststecserswesets 36 
— of Alaska...... did ibaeseaeuastbate casenseneccen>neseneose 36 
Hydrometer determination of the specific 
GIAVIty Of SOLIGS......cceeeeeereeeceseeereeeserenee 26 
Hygrometer observations.... 36 
Hypothesis, Utility of, in science ........... xxxiii 
Ichthyological results of the voyage of the 
AIDAtrOSs ...ccosccscnssessccvsvcescsccnscecccsenscescanse 48 
Idiots, Dumbness Of.......scesseeeereereereeeeeceeees 
Illinois, Loess hills of 
Inaugural address of the Chairman of the 
Mathematical Section. ..........-ccseseeseeeeeeees 117 
Infinite and infinitesimal quantities ............ 133 
Initial meridian, Universal...........sseesseeeessees 106 
Intermarriage of deaf mutes............... 74, 76, 83 
Intermittence Of VOICANOES......ceececeeeceeeeeereeee 91 
International Geodetic Association ........--.+ 106 
Invitation to Anthropological and Biological 
SOCTCHICS..v.cccsscvcccssancosseccoescccnsassasscnsesacess 87 
Iowa, Loess of eastern........ socuenenseesde secre pmenne 92 
Kerr, W. C.: communication On the geology 
of Hatteras and the neighboring coast.. 28 
— — —, Election to membership Of.......+++++ 33 
Kinematic hypothesis, The..........ss0+sesees xxviii 
King, A. F. A.: communication on The pre- 
vention of malarial diseases, illustrating, 
inter alia, the conservative function of 
AZUL... cccreceeernevner sushanSeavevacteconsnssnstenccsessen 5 
Knox, J. J.: communication on The distri- 
bution of the surplus money of the 
United States among the States.............. 
Kotzebue Sound ice CLiffs.........seseseeeeee eucaes 34 
Kummell, C. H.: communication on Align- 
PHILOSOPHICAL SOCIETY OF WASHINGTON. 
Page 
ment curves on any gurface, with spec- 
ial application to the ellipsoid................ 123 
The theory of errors practi- 
cally tested by target shooting.......... sseee OS 
— — —: remarks on consequences of the re- 
lation of the circle to the equilateral hy- 
perbola... ade wsse isa devas Ugh 
—---- ‘infinitesimals..2.< ee 135 
—-—--—- refinement in the determina- 
tion of the temperature of the air........... 26 
Lavas of the Hawaiian Islands............++e+eeee 13 
Lee, William: communication entitled 
Sketches from medallic medical history 39 
Leadville Ore CepOSits......sceccsssecesee seceeessnees 32 
Least-Square COMPUtAtiON .........ceseeceeereeren ere 150 
Lefavour, E. B.: remarks on infinitesimals... 135 
Liagre’s theory.............c.ccsssenasasevssusnnshmseenseaen 139 
List Of members :cessesastscceseacceesuasnaaee Ae sy 
Loess of eastern Iowa 93 
Longitudes, Unification Of ........ccereceeseeeee cone LOG 
McCullough, Hugh: remarks on money de- 
posited by the United States with the 
State of Im diam ars ciictsscacttscescesetendeawemecee 106 
McDowell, Silas: cited on thermal belts of 
North) Carolinas: 22s. sccccocneeceeeceaahepueane 11, 12 
McGee, W J: communication on The drain- 
age system and the distribution of the 
loess of eastern TOWa.........csceeesecees pececets 93 
Malarial diseases, Prevention Of...........0.ss00+ 5 
Mallery, Garrick: election as Vice-president 41 
Mallet's theory of volCanisM..........sssceeeeeeeees 90 
Marriage of deaf mutes... oss cheap pee 
Mass of planets, Deteiiinstias ats asa es crt, » 132 
Mathematical Section, Address by Chair- 
AVIAN OL; LHC secseneessaccsuctersuccsaewaee wabuseihae 117 
— —, Bulletin of the..........cecccceeeseee acta 113, 121 
— —, Committee of the.... 
—, Members of the.... 
— —, Officers of the....... na 
— —, Organization Of the........0.....sccccseses 28, 121 
— =, Rules Of....sssccosccctivencseser aeeneaea +. 11551385 * 
Mathematics (see Arithmetic, Formulas, Math- 
ematical Section.).....0. acaceudedes Seine bRaaneetern 
Matter, Combination of..............04 
Maxima and minima........ 
Medallic medical history.. 
Members, List of. : 
— of the Mathematical Section.............2.0000+ 
Meridian, Universal initial............... iecanaeee 
Metamorphic deposits....... pags seesensnenscsecreonecs 
Metamorphism and subsidence ........-.c.0se0e 
Meteorology (see Climate, Humidity, Hygro- 
meter, Temperature, Thermal, Thermome- 
ter.) 
