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KY L 296 You 
Wyatt, T., Manual of Conchology,| 
by, noticed, xxxv, 386. | y. 
Wyman, J., on an anomalous sub- 
stance resembling bone, xxxvi, 
381. 
, on fossil bones from Georgia 
- and Burmah, xxxvi, 585. 
, on a feetal kitten, xxxvi, 391. 
, recent tooth of an elephant 
from Singapore, xxxvi, 386. 
, on the skeleton of the sloth, 
Xxxvi, 382. 
, dissection of mackerel shark, 
REK Vill, LOT. 
» —— of an electrical 
xxxvill, 19'7. 
, description of a tooth of a 
mastodon, xxxix, 53. 
, on Filaria in the lungs of a 
sheep, xxxix, 183. 
, on the Nantilus umbilicatus, 
xxxix, 185. 
, on the Otion Cuvieri, xxxix, 
182. 
, notice of the howling monkey, 
xl, 387. 
, blind fish from a cave in 
Kentucky, xlv, 94. 
, Microscopic structure of the 
teeth of the Lepidostei, and their 
analogies with those of the Laby- 
rinthodonts, xlv, 359.f 
Wyoming, scenery of, iv, 4; xviil, 
316. 
——, coal regions of, B. Silliman, 
xviii, 308.f 
, forts, battle ground, xvill, 317. 
——., history of, xvii, 387. 
> 
Xanthic oxide in guano, xlix, 200. 
Xanthine, Unger, xlix, 391. 
Xanthite, a new mineral, W. W. 
Mather, xviii, 359‘, [Idocrase. ] 
eel, 
, formula from the analysis, 
J. J. Berzeiius, xxvi, 388. 
Xanthium maculatum, memoir on, 
C. S. Rafinesque, i, 151. 
Xanthogen, discovery of, vii, 377. 
Xavier, F., death of, xxiv, 194. 
Xyloidine, H. Braconnot, xxviii,131. 
Yale College Observatory, latitude 
and longitude of, xxxiv, 309. 
——, geological position of, 
vii, 20. 
, Report of the Faculty 
on a course of liberal education, 
RV yO de 
—— Cabinet, presents to, 
xxvii, 881, 382. ' 
—— Library, donation to, 
xxvii, 184. 
, Trumbull Gallery of 
Paintings at, xxxix, 213.f 
——, donation of shells to, 
xxxix, 195, 
Yale Natural History Society, xxx, 
187; xxxiv, 397. 
Yard, English, as compared with 
the French metre, xxi, 382. 
Yarrell, W., notice of the British 
Fishes of, xxxvil, 167. 
, on Osmerus Hebridicus, xxxv, 
312. 
, Notice of, xxxvil, 167. 
Yeast, mode of making, vii, 378 ; 
x, 387. 
Yenite, in Connecticut, vili, 59. 
,in Rhode Island, vii, 251; 
viii, 231. 
Yelloly, on an acoustic instrument, 
xXxxv, 3138. 
Yellow copper ore, see Copper, sul- 
phuret of. 
wood, iil, 44. 
Yew tree, longevity of, xxix, 353 ; 
Xxx1, 308. 
——, ——, J. E. Bowman, 
Xxxl1, 358. 
Yorkshire Philosophical 
xxi, 168. 
, Geology of, by J. Phillips, 
noticed, xxi, 1. 
Young, A., life and character of N. 
Bowditch, xxxv, 1. 
Young, J. R., Elements of Geom- 
etry, xxv, 206. 
Young, G., antiquity of organic re- 
mains, xxxv, 308. 
Society, 
