INDEX. 



953 



Darwin (Prof. G.) on seismologioal in- 

 vestigation, 59. 



(Horace) on scisviological investi- 

 gation, 59. 



on the relative movement of strata 



at the Ridgemay fault, 119. 



(Maj. L.) on seismologioal investiga- 



tion, 59. 



* Davis (A. S.) on a novel form of 

 barometer, 652. 



DAWkins (Prof. Boyd) on the excavation 

 of caves at Uphill, 342. 



on Irish clli remains in the Isle of 



Man, 349. 



on the age of stone circles, 4(51. 



Dawson (Dr. G. M.) on an ethnological 



surrey of Canada, 468. 

 (H. M.) on the influence of pressure 



on the formation of oceanic salt 



deposits, 705. 

 (The late Sir J. W.) on Catiadian 



Pleistocene fauna and Jiora, 328. 

 * (W.) on recent tramway construc- 

 tion, 877. 

 (W. Harbutt) on the treatment of 



the tramp and the loafer, 851. 

 Deasy (Capt. H. H. P.) on journeys in 



Central Asia, 812. 

 Dendrocometes, the nuclei of, Prof. S. J. 



Hickson on, 784. 

 Dentition of the seal, Prof. K. J. Anderson 



on the, 790. 

 Denudation in fresh and salt water, some 



experiments on. Prof J. Joly on, 731. 

 Db Ranch (C. E.) on the erratic Mocks 



of the British Isles, 343. 

 Bew-ponds, Prof. L. C. Miall on, 579. 

 Dewar (Prof. J.) on wave-length tables 



of the spectra of the elements and 



compounds, 193. 

 Dickson (H. N.) on the application of 



photography to the elucidation of 



meteorological phenomena, 56. 



— on the plankton and physical condi- 

 tions of the English Channel during 

 1899. 379. 



on the climatology of Africa, 413. 



on the revision of the physical and 



chemical co7istants of sea water, 421. 



* Diffusion of gases and liquids, H. T. 



Brown on some recent work on the, 704. 

 DipteridinaK, the geological history of, 



A. C. Seward and E. Dale on, 946. 

 Dipteris conjvgata, the structure and 



affinities of, A. C. Seward and E. Dale 



on, 946. 



Discussions : 



* On ions, 654. 



On the conditions under which the 

 plants of the Coal Period grew, 

 746. 



Disease, the local incidence of, in Brad- 

 ford, Dr. A. Rabagliation, 845, 



Dixon (A. Francis) on certain markings 

 on the frontal part of the human 

 cranium and their significance, 903. 



, (Prof. H. B.) and R. W. RixON 



on the specific heat of gases at tem- 

 peratures up to 400° C, 697. 



DoBBiE (Prof. J. J.) on absorption spec- 

 tra and chemical composition of or- 

 ganic bodies, 151. 



Doublet, a quartz-calcite symmetrical, 

 J. W. Gifford on, 630. 



Duckworth (W. L. II.) on anthropo- 

 logical observations made by Mr. F. 

 Laidlaw in the Malay Peninsula 

 (Skeat expedition), 909. 



on crania collected by Mr. J. Stanley 



Gardiner in his expedition to Rotuma, 

 910. 



DuFTON (Arthur) and W. M. Gardner 

 on the production of an artificial light 

 of the same character as daylight, 631. 



DuNSTAN (Prof. W. R.) on the teach- 

 ing of science in elementary schools, 

 187. 



DwERRYHOUSE (A. R.) on the erratic 

 blocJis of the British Isles, 343. 



on the movements of underground 



waters of Craven, 346. 



Dynamics of gas theory, the statistical, 

 as illustrated by meteor swarms and 

 optical rays. Dr. J. Larmor on, C32. 



*Dynamos, the construction of large, as 

 exemplified at the Paris Exhibition, 

 Prof. S. P. Thompson on, 877. 



Eartliquakes, large, recorded in 1899, 

 J. Milne on, 812. 



See Seismologioal Investigation. 



Earthworks of Yorkshire, the defensive, 

 Mrs. E. Armitage on, 913. 



Eohinoidea, the fertilisation 2>'>'0ce*s in, 

 A. H. R. Butler on, 387. 



Eclipse instruments, the operation of, 

 automatically, Prof. D. P. Todd on, 

 673. 



research, the application of the 



electric telegraph to the furtherance 

 of, Prof. D. P. Todd on, 673. 



* , solar, the duration of annularity 



in a, C. T. Whitmell on, 680. 



, total, of May 28, 1900, a compari- 



»on of prominence and corona photo- 

 graphs taken in Spain and North 

 Carolina, Dr. W. J. S. Lockyer on, 

 676. 

 -, total, of May 28, 1900, the dura- 



tion of totality of the, C. T. Whitmell 

 on, 680. 

 Eclipses, photographing total, the adap- 

 tation of the principle of the wedge 

 photometer to the biograpb camera in. 

 Prof. D. P. Todd on, 674. 



