INDEX. 



907 



live effects of, on ditferent conductors, 



W. H. Preece on, 513. 

 Curve-ranger, a, by A. P. Trotter, 751. 

 •Curves in space, Prof. Caj'ley on, 4!I9. 

 *Curzon (Hon. G.), tlie Central Asian 



railway in relation to the commercial 



rivalry of England and Rus.sia, Ii6vi. 

 Cylindrical shells, the extension and 



bending of, A. B. Basset on, 4tt9. 

 ♦Cyprus, by Gen. Sir E. Biddulph, 659. 



Dagger (J. H. J.), the manufacture of 

 the alloys of aluminium in the electric 

 furnace, 538. 



Dark flashes of lightning, A. \V. Clayden 

 on, 507. 



Darwin (Prof. G. H.) on the best means 

 of comparing and reducing magnetic 

 observations, 49. 



Darwin (H.) on the effects of different 

 occupations and employments on the 

 physical development of the liuman 

 body, 186. 



Davis (J. W.) on an ancient sea-beach 

 near Bridlington Quay, 70 ; on the pre- 

 historic inhabitants of the British 

 Islands, 318. 



Dawkins (Prof. VV. Boyd) on the erratic 

 blocks of England, Wales, and Ireland, 

 115 ; on the geography and geology of 

 the Atlas ranges in the Empire of 

 Morocco, 165 ; on the work of the Cor- 

 responding Societies Committee, 187; 

 on the prehistoric inhabitants of the 

 British I.slands, 318. 



Dawson (Dr. G. M.) on the North-western 

 tribes of the dominion of Canada, 797. 



De Ranee (C. E.) on the circulation of 

 underground waters, 71 ; on the erratic 

 blocks of England, Wales, and Ire- 

 land, 115; records of river volumes 

 and flood levels, 748. 



De Winton (Col. Sir F.), Address to the 

 Geographical Section by, 650. 



Deacon (G. F.) on underground tempera- 

 ture, 35 ; on the investigation of the 

 action of waves and currents on the 

 beds and foreshores of estuaries by 

 means of working models, 327. 



Deep-sea tow-net, a, for opening and 

 closing under water, report of the 

 Committee for improving and experi- 

 menting with, 1 II. 



, an improved form of, by' G. C. 



Bourne, 624. 



Degree of concordance between different 

 examiners in assigning marks for 

 physical qualifications, experiments at 

 Eton College on the, by A. A. Somer- 

 ville, 477. 



D'Entrecasteaux and Louisiade Islands, 

 notes on the fauna of the, by B. H. 

 Thomson, 615. 



D'Entreca.steaux and Louisiade Islands,, 

 the exploration of the, by B. H. 

 Thomson, ()68. 



Deposit of silver, the quantity of, pro- 

 duced by the development on a photo- 

 graphic plate in terms of the intensity 

 of light acting, Capt. Abney on, 493. 



Desmid, a hybrid, by A. W. Bennett, 

 620. 



Devonian ganoid Onychodug, the occur- 

 rence of the, in Spitzbergen, A. S. 

 Woodward on, 584. 



Devonian rocks of Great Britain, the, by 

 W. A. E. Ussher, 578. 



Dewar (Prof.) on forming a uniform 

 system of recording the results of 

 water analysis, 55. 



Dickinson (J.) on underground tempera- 

 ture, 35. 



Did the great rivers of Siberia flow south- 

 wards and not northwards in the Mam- 

 moth age ? by H. H. Howorth, 591. 



♦Differential gravity meter,a good, fourth 

 report of the Committee for inviting 

 designs for, 504. 



Disappearance of native plants from 

 their local habitats, second report on 

 the, 435. 



Dixon (Prof. H. B.) on electrolysis in its 

 physical and chemical bearings, 223 ; 

 ♦explosion of a mixture of hydrogen, 

 chlorine, and oxygen, 541. 



* and J. A. Harker on the action of 



light on dry hydrogen and chlorine,. 

 541. 



Dorsal papilla; in nudibranchiata, the 

 structure and function of the. Prof. 

 W. A. Herdman on, 630. 



Dorsey (E. B.) on the Witwatersrand 

 goldflelds, 592 ; on the comparative 

 cost of working English and American 

 railways, 752. 



Douglass (Sir J. N.) on the investiga- 

 tion of the action of waves and currents 

 on the beds and foreshores of estuaries 

 by means of working models, 327. 



♦Draught of horses, the, by T. H. Briggs, 

 754. 



Drift, a deep channel of, in the valley of 

 the Cam, Essex, W. Whitaker on, 588. 



Du Bois (Dr. H. E. J. G.) on Kerr's mag- 

 neto-optic phenomenon : its laws and 

 application for measuring purposes, 

 515. 



Du Chaillu (P. B.), the Vikings, the direct 

 ancestors of the English - speaking 

 nations, 779. 



Dugong, the placentation of the, Prof. 

 Sir W. Turner on, 629. 



Dunstan (Prof. W. K.) on the present 

 methods of teaching chemistry, 228. 



♦Durham coal-field, the extension of the. 

 Prof. G. A. Lebour and J. Marley on,. 

 580. 



