OO 
520 
Contacts between electrical conductors, 
some experiments in, by Dr. W. H. 
Eccles, 401. 
*Contrast as. a factor in psychological 
explanation, by Dr, W. G. Smith, 691. 
Convergence in the mammalia, discussion 
on, 524. 
z= Dr. Gadow on, 524. 
—— Prof. L. Dollo on, 524. 
—— Prof. van Bemmelin on, 524. 
Dr. W. K. Gregory on, 525. 
*Conway (Prof. A. W.), an_ electro- 
magnetic theory of the origin of series 
spectra, 399. 
Cook (Gilbert) on stress distributions in 
engineering materials, 168. 
—— The resistance of tubes to collapse, 
213. 
*Coorer (C. Forster), Z'hawmastotherium 
osborni, a new genus of perissodactyles 
presenting some unusual features, 530. 
Cooper (W. R.), short heat tests of 
electrical machines, 608. 
*Co-partnership and trade unions, by 
Dr. C. Carpenter, 573. 
by J. B. C. Kershaw, 573. 
Copper, commercial, the degradation or 
enhancement of the quality of, by the 
presence of impurities, by F. Johnson, 
451. 
Copper in the sandstones of Exmouth, 
C. Carus-Wilson on the presence of, 
494. 
Coprinus, the genus, the organisation of 
the hymenium in, by Prof. A. H. R. 
Buller, 715. 
Coprinus sterquilinus, Fr., conditions 
necessary for the germination of the 
spores of, by M. L. Baden, 715. 
Cornisu (Dr. Vaughan), a simple method 
of determining the period of waves at 
sea, 406. 
how the relation between the 
horizontal and vertical movement of 
the water in tides and waves causes 
them to drive sand forwards, 489. 
on landslides accompanied by up- 
heaval in the Culebra cutting of the 
Panama Canal, 609. 
Corresponding Societies Committee :— 
Report, 324. 
Conference at Birmingham, 325. 
List of Corresponding Societies, 344. 
Papers published by Corresponding 
Societies, 349. 
Corti (Rev. A. L.) on establishing a solar 
observatory in Australia, 132. 
solar and terrestrial magnetic dis- 
turbances, 394. 
CossaR (J.) on geographical teaching in 
Scotland, 161. 
Cost of living, prices and the, discussion 
on, 578. 
INDEX, 
Cox (Dr. A. Hubert) on the igneous rocks 
of ordovician age, 496. 
and Prof. O. T. Jonzs, the geology 
of the district between Abereiddy and 
Pencair, Pembrokeshire, 484. 
on various occurrences of 
pillow lavas in North and South 
Wales, 495. 
*Craia (J. T.), a temperature see-saw 
between England and Egypt, 395. 
CRAWFORD (O. G. 8S.) on acquiring and 
arranging collections illustrating the 
natural history, &c., of the Isle of Wight, 
155. 
—— trade between Britain and France 
in the neolithic and bronze ages, 
650. 
Critical sections of the Cambrian area 
called the Cwms in the Caradoc- 
Comley region of Shropshire, by 
K. 8. Cobbold, 486. 
CROOKE (W.) on the production of certified 
copies of Hausa manuscripts, 228. 
the stability of tribal and caste 
groups in India, 632. 
CrossLEy (Prof. A. W.) on the study of 
hydro-aromatic substances, 135. 
*Crystalline-liquid substances, by Dr. J. 
Hulme, 431. 
*Crystals, microscopic, with epidiascope 
illustrations, by G. Hookham, 407. 
Crystals and X-rays, paper by Prof. 
W. H. Bragg, 386. 
* - discussion on, 404. 
CULVERWELL (Prof. E. P.) on the mental 
and physical factors involved in educa- 
tion, 302. 
CuNNINGHAM (Lt.-Col. A.) on the divisi- 
bility of (2” — 2) by p*, 398. 
*CunnINGTON (C. H.), the carboniferous 
limestone at the head of the Vale of 
Neath, 499. 
CunyNGHAME (Sir Henry), explosions 
in coal mines and the means of pre- 
venting them, 783. 
Curricula and educational organisation 
of industrial and poor-law schools, re- 
port on the, 301. 
Cycads, the centripetal and centrifugal 
xylem in the petiole of, by Dr. M. J. 
LeGoc, 710. 
Cyprus, the archeology of, by Prof. 
J. L. Myres, 644. 
CzaPLicka (Miss M. A.), the influence of 
environment upon the religious ideas 
and practices of the aborigines of 
Northern Asia, 642. 
Datsy (Prof. W. E.) on gaseous explosions, 
166. 
on stress distributions in engineering 
materials, 168. 
