436 
Griffith and Henfrey, Microscopic Diction- 
ary oy noticed, xviii, 131, 285. 
ts in coating metals, 
xiii, 
Grotto del cane, B. Silliman, Jr., xii, 25 257: 
— J. & W., microscopes of, xiv, 145, 
Gulf stream, effect of, on temperature, xv, 
m,, . 
xploration, _ 204, 
Gu iit ezquite, 
Gutta af a rcha bad as a means of insulation, 
Page, x 
“ed for t sslainls ferns, &c., xi, 280, 441. 
jotography, xiii, 300. 
Gage, Ay on the ‘Topography of New York, 
o. 
Hlaticy, C. W., Trigonometry of, noticed, 
in 299. 
, J. M,, analysis of Jn 250. 
ie protectivn oo i, 432. 
at Cuba, x 
Hailstones, hes ma large, xvii, 37, 
Hailstorms in hii, xiii, 294, 
ated Yor! pms, xvii, 35. 
Ss eri “notice of Rigg’s Dacota 
Tadbat, xix, 450. 
Elements of Latin Pronunciation, no- 
ticed, xii, 303. 
el C. S., Gnathodon beds of Mobile, xi, 
Hail, J., new genera of fossil corals, xi, n California, xx, 178. 
on fossils of the Taconic ie To xix, in the Caspian Basin, xviii, 440. 
434. in Vermont, xvi, | 145. 
Geological Chart, noticed, xii measurement of, by boiling water, X%+_ 
work by, on Paleontology of New York,}) 117. 
noticed, xv, 466, xvi, 127. Heintz, a of human and other fat, 
Rocky tains, xv, 126. xiii, 260, xv 
on the Silurian System of the Lake Su- Heliochomics, Raikes , XV, 272. ' 
i Bah xvii, 181. elmholiz, on rate of transmission of impres- 
Halos and ree Me. xiii, 433. | aes son the nerves, xvii, 422. 
ilton, W. J., extract from , xx, || Hemione, deauescaned ge 411. 
Handbook of Universal Geography, noticed, 
xv 
: rist_ and Horticultural Journal, 
pert ian oa 
~~ R., on iaisitian of siliceous stones, xii, 
Hart, T. S., letter on Almaden Mine, xvi, 
Hartel, ae ona Tertiary Rainbow, xvii, 56. 
reis Boreali-americana, noticed, 
xiv A large 
Phycologia § Britannica, xiii, 53. 
lassal, A. er microscopic anatomy by, no- 
» xii, 451, 
Hats, Panama, xix, 439. 
Hausiab, on the octahedral character of the 
Globe, xiii, 268. 
7 oral below Pg of the Globe, note on, 
Hisimuans FPeb diol 
usmann d mol te 
of Joust furnace products, xi Y fe 433, ae 
xi, 3, hy ida 
Hawai erapton i) iii 
INDEX, VOLS. XI.—XX. 
Hayes, A. A., on Borocalcite, xviii, 95. 
coal of Rhode Island, xi, 267. 
corrosion of copper sheathing, xi, 324. 
on Rutile, xii, 389. 
different chemical conditions of waters 
# 
of surface an {tom o 
ocean, xi, 241. 
Cochituate water, el 257. 
Heat, latent, of ice, xi, 
chanical action ae eikie xvii, 274, 
xviii, 
note on , Xviii, 
300. 
mechanical equivalent of, xiv, 421, xix, 
i 
relation of specific, to atoms, xv, 110. 
specific, of gases and — ae 115. 
expenditure of, in air-engin A. P. 
Barnard, xviii, 1 
used in takin impr ressions, xviii, 
passage of, through cryst stals, Psi, 
xiv, 97, xix, | 
Prod uced by friction, for making steam, 
Heated Air Engine, see a 
Heating lamp of Deville, xv rfp. 
Hectocotylus of the Cepbalopade, £¥ 260, 
eight of poin -- 4 the Alleghany abe 't Ohio 
Stioen © Xvi, 
snowline i if sitceneit regions, xv, 2 
— 290. 
a, XU, 
“ihrer intweit, xiv, 363 
Heights of the Alps, Schlagintweit, ay, Soe 
Henck's Fieldbook for Railroad Engineers, 
Hendricke, JE. ., on the flow of elastic fluids, 
ed, : 
lenfrey, Pane xual — in the Crypto- 
pie, ate 378, my 25, xx, 276. 
Vegeta 
aes _ xiv, 26 
on Sclpatine. xs a, Sil. 
— E. C., Meteor seen in 
xi, 135. 
Ss 
g 3 
Pe 
a 
S 
(cied 
& 
vd 
bk 
rrestrial Physics, by, 
on of Soest By: noticed, xiv, — 
, T.J., on nitric acid a8 known to — 
xvi, 
full day light, © 
Si a 
