3 
BRA 
Bourne, A., manufacture of glass! 
for optical purposes, xi, 207. 
, prairies and barrens of the 
west, 11, 30. . 
—-, presentation of shells to Yale 
College, xxxix, 195. 
, resistance of liquids, xxviii, 
Delle 
Bourne, W. O., Bergen Hill mine- 
rals, xl, 69. 
Bowditch, N., life and character of, 
A. Young, xxxv, 1£ 
, obituary notice of, xxxiv, 220. 
, notice of, by the Duke of 
Sussex, xxxvi, 214. 
, list of the scientific papers of, 
xxxv, 46. 
» Mecanique Celeste, publica- 
tion of, xxxv, 17. 
, Treatise on Navigation, by,| 
origin of, xxxv, 9. 
Bowdoin, J., account of an irised 
aurora, xvill, 72. 
Bowen, A. W., Floral Calendar for 
1826-7, as kept in Herkimer Co., 
INERYES xvi, 49: 
Bowen, G. T., analysis of a siliceous 
hydrate of copper from New Jer- 
sey, vill, 118. 
; the tungstate of lime, 
of Huntington, Ct., v, 118. 
, description and analysis of 
Sillimanite, viii, 1138, 
, localities of spodumene in 
Massachusetts, viii, 121. 
, magnetic effects produced by 
Hare’s calorimoter, v, 357. 
Bowman, J. E., infusorial vegeta- 
ble remains in England, xl, 174. 
Boué, geological journey, ix, 23. 
Bowring, J., on the boracic acid 
lagoons of Tuscany, xxxvii, 270. 
Boye, M. H., production of a per- 
chloric ether, xl, 50. 
» on perchloric ether, 
| 
xlii, 
63. 
Brace, J. P., list of plants growing 
in Litchfield Co., Conn., iv, 69, 
292: 
, on the minerals of Litchfield 
Co., Ct., 1, 3851. 
9 BRE 
Brace, J. P., on the Phalena de- 
vastata or cut-worm, 1, 154. 
Braconnot, on xiloidine, xxviii, 131. 
Brady, Samuel, legend of, xxxi, 48. 
Brady’s Hill, legend of, xxxi, 20. 
Brain of idiots, defective, xxxiv, 31. 
Brandes, H. W., notice of,xxviii,97. 
, observations on shooting 
stars, xv, 168; xxvii, 975 xxxil, 
3615 xxxv,'231, 361. 
Brandy from potatoes, Stemen’s pro- 
cess for making, ix, 386. 
Braun, A., Chare of North Amer- 
ica, xlvi, 92. 
, on North American Equise- 
ta, xlvi, 81. 
Brazil, number of known plants in, 
xv, 390. 
Bread, on alcohol in, xxii, 194; 
xxvii 21 B: 
, use of sulphate of copper 
and other saline materials in ma- 
king, M. Kuhlmann, xx, 269. 
Breast wheels, A. B. Quimby, xi, 
333. 
Breathing, voluntary, v, 203. 
‘Breccia,cemented by hematitic iron, 
vill, 18. 
» quartzose, in western Massa- 
chusetts, vill, 18. 
‘Breislakite, x1, 250. 
Breithaupt’s specific gravities of 
minerals, table of, xxxi, 268. 
Bremicker’s comet, xl, 207. 
Brevicite, a new mineral species, 
x, L/S: 
Brewster, D., on the distribution of 
the coloring matter and the opti- 
cal properties of the Brazilian 
topaz, vil, 364. 
, a new fluid in minerals, vii, 
186. 
, new structure in the diamond, 
XXXIV, O7. 
, monochromatic lamp, vii,363. 
, double refraction resulting 
from pressure, xxi, 296. 
, cause of double refraction in 
crystals, xxi, 299. 
, on the polarization of light 
by reflection, xxii, 277.f 
