504 
bridge, W. P., Tables and diagrams 
gk ae to engines and boilers, noticed, || 
496. 
Tse hermal, meteorites of India, 78. 
Tuckerman, E., Genera Lichenum, no- 
ae 420 
ming, £ C., Euclid’s doctrine of 
paralicts demonstrated, 333. 
Uranium, sgt “g en com- 
pounds o 
Vv 
Vapor vesicles, Plateau, 
Venus, papers relating ss gene of, no- 
tice 
Vesuvius, composition of vapors from, 
147. 
Vogel, spectrum of — borealis, 487. 
Voleanic energy, Mallet, 
Volcano, eruption of i. Loa, 331, 
406. 
WwW 
Wagner, R., Hand-book of chemical tech- 
nology, notice d, 422. 
., prismatic bows on Lake 
Geneva, 79. 
Water eg an electrolyte, ag 
ent action of, 4 
Weber, ce F. specific heat of carbon, 228, 
Websty, transparen nt garnet from Silesia, 
Whitvey, J. D., Owen’s Valley earth- 
quake, 
INDEX. 
Winchell, N. H., surface geology of 
northwestern Ohio, 321 
oodward, H. , monograph of the Mero- 
pointe ‘noti ced, 322. 
Wright, 1 spparatus for the pro- 
duction of 0Z0' 
acti of ozone upon vulcanized 
outch: 
Warts, an valde nye alcohol 
Wurtz and Vogt, formation of ome 312. 
ea 
oung, C. A. , catalogue of bright lines 
in spectrum ‘of the atmosphere, 356. 
Yttria — pro separation from zirconia 
and iron, 230. 
Z 
ryeesten ot J., new erecting prism, 64. 
ZOOLOG 
Birds, bet 
Sola distribution in, 
Conchology, Journal of, 80. 
oral reefs, rate of growth oe 143. 
Fishes, nerd of color in 
Journal of, n 
Monkeys, intelligence in , Cope, 1 
hye a North American, “Far. 
ger, 
Serpents, 
Snake, apes 1s habit of, pv 148. 
ponges, reproduction of, 249 
Terebratulina, ~ vito iets and embryol- 
ogy of, 
316. 
Wilson, double star Castor, 77. 
Mors 
See further oath pane 
ERRATA. 
Vol. hie p- oe as “(near Chatham Four-corners)” read “ (near Galesville, Wash- 
ington 
Vol. iv, page, s, 8th line from top, for A peace read ' ‘ partially.” 
: last line, iss “ Tinoceras anceps: 
a7 
“ 
” 
“ ‘or * read “narrow.” 
4 ‘ 13 lines from bottom, for “ but five’ He ‘gis:” . 
* _ * 370, 19 lines from foot, before “Trenton,” insert “‘ Quebec. 
vi ** 389, line 10 from top, for ventral read 
’ ae oe aS ng P, read UT). 
oa Ra? Bg * read 300. 
