INDEX. 
PARKIN (J.) on a brilliant pigment 
appearing after injury in species of 
Jacobinia (N.O. Acanthacez), 818. 
PARKINSON (John), the geology of the 
Oban Hills, Southern Nigeria, 570. 
Parsons (Hon. C. A.), Address to the 
Engineering Section by, 667. 
PARSONS (F. G.), facial expression, 717. 
Patagonia, the miocene ungulates of, by 
Prof. W. B. Scott, 589. 
PATERSON (C. C.), some investigations 
on the ten-candle power Harcourt 
pentane lamp, 683. 
Pathological research, a committee of, 
by Dr. T. S. P. Strangeways, 760. 
PEACH (B.N.), on life-zones in the British 
carboniferous rocks, 226. 
—— and Dr. J. Horn#, the base-line of 
the carboniferous system round Edin- 
burgh, 546. 
PEAKH (A. H.), superheated steam ; wire- 
drawing and other experiments, 676. 
*Peano’s symbolic method, by A. N. 
Whitehead, 440. 
PEIRCE (Dr. G. J.), the dissemination 
and germination of Arceuthobiwm 
occidentale, 818. 
Pentavalent nitrogen atom, Prof. O. 
Aschan on the, 517. 
*Peperomia seedlings, A. W. Hill on 
some, 783. 
Peptone and its precursors, the physio- 
logical effects of, when introduced into 
the circulation, interim report on, 342. 
Periodic law, a new theory of the, by 
Prof. G. J. Stokes, 525. 
PERKIN (Prof. W. H.) on the study of 
hydro-aromatic substances, 60. 
—— on securing the use of duty-free 
alcohol for scientific research, 170. 
PHRMAN (Dr. E. P.), the decomposition 
and synthesis of ammonia, 528. 
Permanganates, les, et les manganates, 
Dr. A. Etard sur, 523. 
PERRY (Prof. J.) on practical electrical 
standards, 30. 
on seismological investigations, 41. 
—— on the courses of studies most suit- 
able for elementary schools, 352. 
PHTRIE (Prof. W. M. Flinders) on the 
present state of anthropological teach- 
ing, 341. 
on the entomology of scarabs, 
* 
700. 
t———_ excavations at Ehnasya, in Egypt, 
with special reference to a series of 
Roman lamps, 701. 
PHILLIPS (C. E. 8.), the production of 
radio-active surfaces, 473. 
PHILLIPS (J. St. J.), on the collection of 
photographs of geological interest, 242. 
Photographie des spectres d’étincelle 
directe des minéraux sulfurés, Comte 
A. de Gramont sur la, 514. 
879 
Photographs of geological interest, fif- 
teenth report on the collection of, 242. 
*Photography, colour, recent improve- 
ments in the diffraction process of, 
by Prof. R. W. Wood, 464. 
Photo-spectro heliograph of the Solar 
Physics Observatory, some results 
with the, by Dr. W. J. 8. Lockyer, 480. 
Phthalein salts, the constitution of, by 
Prof. R. Meyer, 509. 
Phyllomedusa hypochondrialis (Daud), 
the development of, EH. J. Bles on, 605. 
Physical and Mathematical Science, 
Address by Prof. H. Lamb to the 
Section of, 421. 
Physical characters of hospital patients, 
a comparison of the, with those of 
healthy individuals from the same 
areas, by Dr. IF. C. Shrubsall, 702. 
*Physical deterioration and anthropo- 
metric survey, discussion on, 705. 
*Physical deterioration of the people, the 
alleged, Prof. D. J. Cunningham on, 
701. 
Physical features of England and Wales, 
the nomenclature of the, Dr. H. R. 
Mill on, 635. 
Physiology, Address by Prof. C. §. Sher- 
rington to the Section of, 728. 
Physiology of heredity, experimental 
studies in the, report on, 346. 
Pineapple galls of the spruce, by E. R. 
Burdon, 822. 
Plague, the spread of, by Dr. E. H. 
Hankin, 748. 
Plane curves, Harold Hilton on, 463. 
*Plankton, freshwater, exhibition of 
micro-photographs of, by Prof. G. S. 
West, 802. 
Plant organs, mechanical 
among, by Dr. J. Clark, 801. 
Plant petrifactions, derived, from Devon- 
shire, E. A. N. Arber on, 549. 
Plants of the northern temperate zone in 
their transition to the high mountains 
of tropical Africa, by Prof. A. Engler, 
799. 
PLATNAUER (H. M.), on the fossiliferous 
drift deposits at Kirmington, Lincoln- 
shire, §c., 272. 
*Plato’s theory of the planets, by Prof. 
D’A. W. Thompson, 482. 
PLUMMER(W. E.)on seismological investi- 
gations, 41. 
Plymouth marine laboratory, report on 
the occupation of a table at the, 297. 
Point groups, the theory of, report on, 20. 
Polypterus, the developmental material 
of, obtained by the late Mr, J. S. 
Budgett, Prof. J. G. Kerr on, 604. 
Population and area in India, the rela- 
tion between, by J. A. Baines, 662. 
*Potamogeton, the genus, report on a 
monograph of, 784. 
advantage 
