326 
GENERAL INDEX. 
ledge of the, by Prof. P. McMurrick, 
1884, 782 
Pickering (Prof. E. C.), Draper memo¬ 
rial photographs of stellar spectra 
exhibiting bright lines, 1886, 553 ; 
1887, 622 
--(S. U.) on the molecular weights of 
liquids and solids, the evidence dedu- 
cible from the study of salts, 1885, 
989 
— on the nature of solution, 1886, 581 
-- on the bibliography of solution, 1887, 
57 ; 1888, 54 ; 1889, 53 ; 1890, 310 
-- the present position of the hydrate 
theory of solution, 1890, 311 , 337 
*Pickwell (R.) on continuous door- 
locks and footboards for railway car¬ 
riages, 1881, 776 
--on a self-registering ship’s compass, 
1883, 657 
Picoline and its derivatives, Dr. W. Ram¬ 
say on, 1876, 67 
Picrite, a Shropshire, W. W. Watts on, 
1887, 700 
Pictish and Scandinavian customs on the 
Anglo-Scottish border, Dr. Phene on, 
1881, 693 
Piets, the, and prae-Celtic Britain, Hyde 
Clarke on, 1885, 1223 
^Picture-writing, Eastern, J. Park Harri¬ 
son on the, 1876, 165 
*Pidgeon (D.) on agricultural imple¬ 
ments, 1884, 896 
•—-— (W.R.)on the Shipman engine, 1888, 
806 
Piedmont, M. Moggridge on the 4 Muffa ’ 
of the sulphur-springs of Yaldieri in, 
1868, 106 
*Pierce (J., jun.) on the United States 
Geographical and Geological Survey, 
1887, 804 
^Pier-heads, M. Evans on the application 
of spring-fenders to, 1876, 223 
Pierotti (Signor) on recent notices of 
the Rechabites, 1862, 147 
Piesse (C. H.) and Dr. Wright on the 
oxidation products of the essential oil 
of orange-peel, 1871, 83 
Pietermaritzburg, Natal, Dr. R. J. Mann’s 
meteorological observations made at, 
1868, 24 
Pigment, a new mineral white, Dr. T. L. 
Phipson on, 1878, 514 
Pike (W. H.) on several homologues of 
oxaluric acid, 1873, 65 
Pikermi vertebrate and invertebrate 
faunas, the geological age and relations 
of the Siwalik and, W. T. Blanford on, 
1880, 577 
Pilcher (W.) on Spanish Honduras, 1890, 
897 
Pile-driver, W. Sissons on a patent steam. 
1865, 190 
■- dwelling recently discovered at 
Ulrome, in Holderness, Yorkshire, J. 
W. Davis on a, 1883, 567 
Piloceras, Salter, the genus, as elucidated 
by examples lately discovered in North 
America and in Scotland, A. H. Foord 
on, 1887, 717 
Pim (Captain Bedford) on an inter- 
oceanic and international transit-route 
through Central America, 1863, 143 
514 -on the volcanic phenomena and 
mineral and thermal waters of Nica¬ 
ragua, 1864,66 
-on the mining district of Chontales, 
Nicaragua, 1867, 127 
- on the proposed canal across the 
Isthmus of Panama, 1879, 521 
- *on British shipping and the ton¬ 
nage laws, 1881, 780 ; *on the lawyer’s 
marine pocket case, 781 
*-on the British navy, 1883, 657 
-on the transit-route through Central 
America projected by, E. Salmon on, 
1863, 183 
Pin-hole photography, Lord Rayleigh on, 
1889, 493 
Pine-timber, Prof. Mallet on the occur¬ 
rence in recent, of Fichtelite, a hydro¬ 
carbon hitherto only known in a fossil 
state, 1872, 79 
Pinto (Major Serpa) on the native races 
of the head-waters of the Zambesi, 
1879, 393 ; journey across Africa from 
Bengueia to Natal, 437 
Pinus pinaster , Prof. Dickson on the 
cones of, 1872, 127 
-- Thunbergii, androgynous cones in, 
and some remarks on their morpho¬ 
logy, F. E. W T eiss on, 1890, 854 
Piperic and hydropiperic acids, G. C. 
Foster on, 1861, 78 
Pirie (Prof. G.) on calculating the sur¬ 
face tension of liquids by means of 
cylindrical drops or bubbles, 1885, 898 ; 
on the surface tension of water which 
contains a gas dissolved in it, ib. 
Pishin Valley, Lieut. St. G. C. Gore on 
the, 1879, 446 
■'•'•Pitcher (R. W.) on overcrowding in 
Liverpool, 1876, 208 
Pitcher plants, a new method of pre¬ 
paring the epidermal tissues of, Dr. J. 
M. Macfarlane on, 1885, 1088 
Pitman (I.) on brief writing, 1864, 169 
-- on economy in education and in wri¬ 
ting, 1888, 776 
Pitt (Robert) on a machine for testing 
girders, 1864, 189 
Pitt-Rivers (Major-Gen.), for communi¬ 
cations before 1880, see Fox (Col. A. 
Lane-) 
-- on the work of the Anthropometric 
Committee, 1880, 120 ; 1881, 225 ; 1882, 
278 ; 1883, 253 
- on excavations in the earthwork 
