INDEX TO VOLUMES. I-X. 
Volume, Roman pagination, Arabic pagination, and pagination of appendix are distinguished 
thus: ix, xvi, 23, (17). 
The pages of appendices are differently numbered at top and at bottom; 
the pagination at bottom. 
the index refers to 
The titles of all papers read to the Society are entered (with some duplication) under the 
following words: Acoustics, Anatomy, Anthropology, Archeology, Astronomy, Biography, Biology, 
Botany, Calendars, Chemistry, Electricity, Geography, Geology, Mathematics, Meteorology, Mi- 
croscopy, Mineralogy, Miscellaneous, Oceanography, Optics, Physics, Political Economy, Psychol- 
ogy, Seismology, Social Science, Thermometry, Zoology. 
Page. 
Abbe, Cleveland, communication on the 
aerial currents observed in balloon as- 
GENSIONS,. ADSt7 ACT ..ccccsecccescesvasssce Rok OS 
the laws governing the movement of 
storm centers. ADStract .........ssceccceeee i 99 
the position of the planes of certain ne- 
bulea. Abstract and reference.......0. a0. i 109 
report of the committee to collect in- 
formation relative to the meteor of 
December 24th, 1873. In full. 2 
FIQures....eoee eedesecncassbasbesne res 41 123, 139 
the aurora. betract Bec ccivssea saunas sedcctecs iv 21 
determining the temperature of the air. 
Abstract......0+ Saatep acess see iua tas ced sccecesassse wi 24 
methods of verifying weather predic- 
tions. Abstract ........ Bretserieccestaeccess vili 8 
Signal Service bibliography of meteor- 
ology. In full....cceoee frtic Antotees couse eee x 
TOMALES ON AULOTAS ..cecovee reece eeeeees 
Stone Mountain patna ane... 
land and S€a DreeZeS ............cessesees ovens 
the mean terrestrial ellipsoid, the geoid, 
and levelling ...... Resehansenneiercnetsasowents whi §=24 
MIAROURICALONOATcitstectescdatsusseccncessecsccres ii 93 
polarization of light by a narrow slit...dd1 124 
Benjamin Peirce.......... monczrarhionereceencheen iv 25 
GHOMAINENSOF SOUNG....c.2-cccscers-secseeccoces v 37 
deflection Of rivers .............02..ssseeeeeeee vii 23 
report as treasurer..v 176, 180, vi xxii, vii xxiv 
Abbe de l’Epee’s instruction of thedumb..vi 63 
Abbe, Prof. E., Apertometer of.................dli 18 
Cited ON MICTOSCOPY.........eeeeee 
Abbey, Westminster S., letter ona ree foun 
on the Florida coast. Read by C. Abbe. 
BVGYQUSEN Mel oxecustsatesssacadccceseenesrsnsescrceer ii 202 
Abel’s researches in elliptic integrals.....wii 106 
_ ACHroMatic ODjeCtiVe......ceccccssccrerersceccreehdd 65 
Page. 
Achromatic objectives, Corrections of....... ili 39 
Acoustic investigations by Joseph Henry..4i 344 
Acoustics, List of papers on: 
on phenomena of sound and experiments 
with tuning forks, J. Henry. Title 
ONG aaeestinvc tates Uea erento a 22 
on sound in relation to fog-signals, from 
investigations under the direction of 
the U.S. Light House Board. J. Henry 
Ti SUL ss ceseuesesvayoutins cocsentedsacceeee Ons AM (45) 
recent experimental researches in acous- 
tics, by Prof. A. M. Mayer. J. E. Hil- 
PAL) “DWE OMe sicssicrcsacsescocesnvceneseeeees i 90 
experiments on fog signals during the 
pastsummer. J. Henry. Title only...t 90 
[letter on fog-signals.] J. Tyndall. Com- 
municated by J. Henry. No abstract...i 91 
on audition. J. Henry. Title only......... ii 22 
on fog-signals and abnormal conditions of 
sound. J. Henry. Reference............ di 37 
sound in connection with fog signals. J. 
Henry. Reference........ listeecedcqsaneecendd li 57 
acoustic refraction. W. B. Taylor. Ab- 
BUT GCLsctttesentaneastascevenshavehone erry | leeeiy 
an account of ropesmtionyt on Bodied! in its 
application to fog-signals. Annual ad- 
dress, 1875. J. Henry. Reference......ii 60 
exhibition of a telaphon. E. Gray. Ab- 
SUN ALLaveakssatrecadceagasscuwacninetevake tance inne sete ii 67 
[fog-signals.] J. eary, Abstract.........44 85 
the telephone. A. G, Bell. Uneaiat aNaven ii 103 
commentsonthe telephone. E. B. Elliott. 
THEME OMA scdaxessascatccaasstacuseces aratevssensaaves di 111 
{scientific method and its application to 
acoustic researches in connection with 
fog signals.] Annual address, 1877. J. 
Henry. Jn full........ asehes ebnctedteueccdsseed ii 162 
