P HO 
Photogenic power of light from 
burning coke, xxxvil, 368. 
Photography, Daguerre’s process 
in, Xxxvil, 8743 xxxvill, 97. 
and photogenic drawings, by 
Daguerre and Talbot, xxxvil, 
169. 
——, processes in, A. Fyfe, xxxvii, 
175. 
» perfection of the art of, J. 
Robison, xxxvii, 183. 
, daguerrotype and its applica- 
tions, W. H. Goode, x\, 137. 
, improvement in the daguer- 
rotype process of, F. A. P. Bar- 
nard, xli, 352. 
, daguerrotype experiment by 
galvanic light, B. Silliman, Jr. 
and W. H. Goode, xlii, 185. 
——, dacuerrotype pictures, mode 
of fixing, engraving and painting 
from, Berres, xxxix, 385. 
, copies of engravings by, xlil, 
164. 
Photographic delineation of nebule, 
at Rome, P. F. de Vico, xliv, 
375. 
impression of the solar spec- 
trum, J. W. Draper, xliv, 204. 
impressions obtained on sil- 
ver, &c., without previous prepa- 
ration, xliv, 159. 
preparation made with ferrocy- 
anate of potash, R. Hunt, xlit,317. 
paper, mode of preparing, 
xxxvil, 171, 1'75, 361. 
, action of the different 
rays of the spectrum on, produ- 
cing colors, J. F. W. Herschel, 
xxxvill, LILI. 
, Intensity of light in dif- 
fuse daylight measured by, A. 
Ure, xxxvili, 107. 
-—— process, observations on, W. 
Ff. Channing, xliii, 73. 
called Chromatype, R. 
Hunt, x\vi, 896. 
, by which dormant pic- 
tures are made, which the breath 
or moisture will develop, xlvi, 
393. 
—— 
200 
! 
Pon EF 
Photometer, X. de Maistre, xxiv, 
378.f 
-——, new, C. Daubeny, xxxviii, 96. 
Phrenology, notice of Gall’s and 
Spurzheim’s views, xxiii, 357. 
, G. Combe’s lectures on, in 
New Haven, xxxviil, 391. 
, remarks’ on, xxxix, 65. 
Phthisis in Paris in 1828, xix, 
193. 
Phyllites, fossil plants, generic char- 
acters of, vil, 182. 
Phyllite in Massachusetts, xvi, 207. 
Physa, see Zootoey, Mollusca. 
Physalis pubescens, xi, 170. 
Physick, P. S., notice of, xxxviil, 
155. 
Physics, IV. Arnott’s Elements of, 
noticed, xx, 155. 
Physical Geography, effects of, on 
the boundaries of empires, J. 
Finch, xiv, 18. 
Physiology, some of the principles 
of, A. Fourcault, xix, 391. 
, animal, xxiv, 382. 
, vegetable, xix, 3935 xxiil, 
138 ; xxxiii, 290. 
Pickering, C., description of the 
Caligus americanus, —- XXxiv, 
225.f 
Pickering, J., notice of life of N. 
Bowditch, xxxv, 886. 
Pickeringite, analysis of, A. A. 
Hayes, x\vi, 360. 
Picropharmacolite of Rigelsdorf, 
vii, 3868. 
Pictet, M. A., death of, x, 1'79. 
Pictured rocks of Lake Superior, 
composition of, v, 220. 
Pictures, transparent, ii, 348. 
Pierce, E., on meteoric iron from 
Otsego Co., N. Y., xlvi, 402. 
Pierce, J., native carbonate of mag- 
nesia on Staten Island, i, 142. 
, geology, mineralogy, scene- 
ry, wc. of the secondary region 
of a part of New York, New 
Jersey, and the adjacent regions, 
il, 181. 
,on mineral waters, Wce., lil, 
235, 236. 
