154 
Page. 
Eastman, J. R., communication on—Cont’d. 
the frequency of the occurrence of the 
zero and the nine digits in the tenths 
of seconds as obtained from the chro- 
nographie record of transit observa- 
MAC SenA ORPRIRCY , ve dccncesossssvscrseeuvaiensacuras i 85 
the comparison of rain-gauges at differ- 
ent elevations. Abstract........ presasesaqel 40) 
a personal equation instrument. <Ab- 
MPT EC Lineddatadsankenhycuusrissssaenescaseair caseen iii 33, 37 
some results from the discussion of the 
observations of the transit of Mercury 
of May 6, 1878. Abstract..........0..s000 Alii 43 
the Florida expedition for observation 
of the transit of Venus [1882]. Ab- 
BU CUrcudstates shea taapedsserenussenscres cacaepene vi 21 
the Rochester (Minnesota) tornado. Ab- 
SEP ACE csccvavs sigaataseesdsesssagbacesentaréscccnses wil 3 
anew meteorite. Abstract... vii 32 
remarks on vocabularies ........ pacsuisetentee ss ii 28 
Eaton, A. B., communication on the preser- 
vation of foods, Title onlyy.........-ceee00e i 22 
Death of........ itaenededcdasd stuns tare teva seen eee ii 111 
Eaton, Prof., cited on classification of ferns, 
iv 110 
Barth, Interior: x... 000. ccecleoescsce dessus ii 76 
tremors as shown uP astronomical obser- 
PVAULOUSi ers /osscuseduvucatavediivecresannutacsatsve Seer 2U 
at Niagara aialia, Josdusdsceuaepenest staswahtoey .. dv 186 
Welocity of casteccuhscesessncesewsttevssecneetea viii 28 
Earthquake. See Seismology. 
Earth’s crust, Crumpling Of ...........cescc00 viii 18 
interior, Condition Of. .icseccsesicedcceceoceenct vili 7 
Easter, Computation of........ ideo Siete wi 15 
Echo from surface of ocean....... tec cheeensincchier ii 171 
Echoes, Tyndall on............eers poss dee eee Aeecd vi 41 
Eclipse of the moon, June 11, 1881............. v 90 
sun, January 11; P8802 oc iee.dect eves cones iii 121 
SUB) JOLY! 29, 1878 .csieiccidevesstsectes ii 202, iff 116 
Economie phase of the English sparrow 
BOSTON cos susscdapceseeeh ssdsensesshen dvescwel leans x 16 
Economies. See Political Economy. 
HMducation, in) Ja paninis2.te.sscsrecsevestwesecssaneons ii 69 
Edwards, W. H., cited on the aes of the 
Rynaphalides ideanagheehaneebesea Tar rereccce iii 42 
Hidocenter ....... Bennde Jeep hkoreucaaunaasa ieee apn cae viii 47 
Eimbeck, Wm., cited on the diorthode.....wi 132 
FOIASHICLOY.- ccc ceiccscactossspassicndncsionnescvsucdcnsebeh oeeebs v 130 
Election of officers........... i 20, 32, 64, 91, ii 16, 59, 
86,161, ii 17, 51, iv 29, v 84, 174, willl 
wii 81, viii 80, ix 47, x 39. 
officers of the Mathematical Section...wi 122, 
vii 87, viii 37, ix 53, x 83 
Electric receivers............ Seren Ca tore iv 153 
researches by Ncasenn “ee Stenecta Socal aees ii 236 
Electricity as a primitive force..... «W 168 
PHILOSOPHICAL SOCIETY OF WASHINGTON. 
Page. 
Electricity, List of papers on (See also 
Acoustics) : 
on the recording systems of the trans- 
atlantic cables. J. E. Hilgard. Title 
ONMY.....00000 vseaeee bdevckenuvsuaveWakn anaes wecedeee) Deh 
[a method of lighting gas jets by electric- 
ity.] Dr. Van Sant. Vo abstract......4 66 
on electricity engendered by the driving 
belt of the machinery for ventilating 
the Capitol at Washington. J. Henry. 
ADS ACl....eeeeee nbsvhpscbanas eeeereae eae ossederirhy AQ 
Jablokoff’s electric candle. J. E. Hilgard. 
LUELE OT. cdsnonndaceuncioonaesseveneeneat aaa aeostae iii 19 
large area illumination by electricity. E. 
B. Elliott. Dvthe onli)... .ccccesncoscseraces fii 45 
the storage of electric energy. C. H. Koyl. 
AlDStT OC scsscssensoassen oc enuvesisdaneevansetsaaeheene vi 46 
units of force and energy, including elec- 
tric units. E. B. Elliott. Title only, 
wi 137 
electric lighting. E.B. Elliott. Title only, 
vii 80 
[exhibition of a volt-meter.] T. C. Men- 
denhall. Abstract..........seccssveee soe Wild = 26 
the electrometer as used in observations 
of atmospheric electricity. C. F. Mar- 
vin. Title only.... Pri 
the mutual action of Geen ee of alsoug ic 
currents. E. B. Elliott. Abstract and 
TEFCTENCE .10.0ce0000 é senncneecoducuesuspaseeyaaeeaaee x 92 
the quotients of space-directed lines. E. 
B. Elliott. Abstract... sveneageee x 105, 106 
Elements, Periodic law Of..............css0eeeee wii 15 
Elevation. See Altitude. 
Eliot and Storer, cited on atoms...........+.00.¥ 128 
Elliott, E. B., calendar of the Society...wii xxii, 
viii xxx, ix xxvii, x xxxi 
communication on the statisties of the 
borrowing power of the United States. 
Title ONLY... .cccersccossens achateenegeeee iateewarees i 29 
the new coinage of Japan. Title only...4 31 
the locus of the point of equal illumi- 
nation by two unequal lights treated 
by the quaternion analysis. Title only, 
i 35 
the adjustment of census returns. Title 
OTUB) cavestonexeas saben svsnsseuensveshy -eeeeeeeee peeve (G0 
life and annuity tables, based on the 
census Of 1870. Title Only ....ecceceeceeeee wATa 
international coinage. Title only......... i 75 
change in value of dollar. Wo abstract, 
i 91 
the credit of the United States, as shown 
by the value of its securities. Title 
