A54 
Patent Office Report for 1850, noticed, xi,| 
Paterson, J., on the Calculus of Operations, 
Pay in sugar, xiii, 143. 
Payer, rae ? Organogénie, ete., noticed, 
Peat Bey its moet Brande, xi, 440, 
F ticed, x ape 
a irce, B., on Saturn’s all i; 
* Pelopium and yo ste Mental, xvii, 425. 
omy gt 
ibid? C. Ss. Lyman, xii, 251, _ 
ibid, D. P. Woodbury, xiii, 
ibid, or on Marquis de Taleak Secchi, 
xiv, ° 
bid, es Rome, Secchi, xiv, 287. 
ibid, with gyruscope, "Foucault, xix, 280. 
ibid, 5 ig te op be Doge, xix, 280. 
rnard, x 
Pe ia, geologic: on xi, 44: 
Pensions, scientific, in England, xiv, 433 
Peopie’s Journal, noticed, xvii, 151 
Perturating animals, xix, 
Perfumery, substances aoe in, x i, 413. 
Perley, boulders Satomi “wi rag xt, 425. 
Perrey, A., = n researches on Karth- 
ui 
eat of ice, x i, 251, 
Personal equation in observations, Xvii, 422. 
Peter, R., on Biue Lick Spring, xi, 284. 
42, 
Petermann, A., on Australia, xvi, 4 
Peters, W. C. H a on carom Xvi, 285. 
Peter: to Altona observatory, 
sen, appoin 
443, 
May, 1850, a i 
comet 
first ste of 1852, xi Se 
Philosophical Society, see can. 
Ph: c nodules in Sil ks, T. 
Hunt, xv, 129. 
Phosphoresce nee - the sea, A. de Quatre. 
fages, XV, 193, x 69. 
Phosphoric = = human economy, D. 
Br gs 275. 
fine; 4, 
bi Seternigetiots a by molybdate 
of ammonia, W. J. Cra 1, 300, 
— of, , Reynon, xiii, 114 
volatility of, in act solutions, xi,403. 
Phosphorus, poetases of, Schrétter, sii 3 260. 
allotropic condition of, xi, 255. 
a eo ga gm unda xi, 108 
action yeerine, xix, tg 
Photogenic glasses, pio id umMinizing, xi, 
Bae ir ore a positive, xv, i19. 
ion of, xvii, _ 
poor ba linen cloth, xvii, 120. 
——- on painting xviii, 437, 
INDEX, VOLS, XI.—Xx. 
Photography, — in, xvii, 290, 
aomat in ete., xvii, 
270. 
ibid, to astronomy, xx, 143. 
ibid, to finding height Lot clouds, xx, 296. 
udies 
collodion for, xviii, 390. 
owind - d of collodion, xviii, 437. 
en ing from, xviii, 390. 
Phot i sen. Deut xvii, 417. 
Phycite, M. Lamy, xvi, 114. 
Physical instruments at great exhibition in 
London, xii, 4 
|| Physies, researches in terrestrial, Henessey, 
a: 271, xv, 
ering, J., thoughts of ings com- 
cin ication foment years ago, xii, 431. 
Pictorial yen s, of fossil remains, by : 
ante le . 
Pine eae sis 
Piperine, a oi albid fr from, xiv, 100, 
tria, action of sulphate a ammonia, xi, 
researches populine, xiii, 412, 
|Pisa, science ets 
111. 
| Pacem xvi, “104, 270, 410, xv, 425, xViy 
i 
method of Pea ge the maturity of 
ony 8, xix, 4 
ry on, noticed xix, 452. 
—_— es oF rard on, xi, 41. 
ted to re estinal worms, L. Agassiz, 
A as 
Plas anes, on ae among, D. Kirkwood, 
ae 344, x ee 
, Le Vervier, i vi, 80 idal, 
aoe notation of the Asteroi 
(ew! Amphitrite (29), xviil, Lat 
iC  Bellods (28), xviii, 137, 2 
276; 
31) x x¥ “130, xix 2725 
. on na (19,3 xiv, -_ xv; 
Irene an. ‘ii, 2 ucothea, XX, 
Photography. Pr 28 407, 
mak xx. SE ey Os, 
form: wind lenses and mir- 
application of, to representing 
pon objects, xvi, 142, ~— 
at of sae 
a nw Sagutne. tee faba pr fast 138, 
j{oloring materials of flowers of, *Viil 
434. 
