INDEX. 



919 



Purification of sewage and water con- 

 taminated with organic matter by- 

 electrolysis, W. Webster on the, 746. 



Queensland, the present and future of, 

 by C. Lumholtz, 667. 



♦Radiation, some experiments on, with 

 Prof. Hertz' mirrors, by F. T. Troufon, 

 510. 



Railway signalling, hydraulic apparatus 

 for, by C. E. Carr, 737. 



Railway trains, the vibration of, Prof. 

 J. Milne on, 492. 



Railways, English and American, the 

 comparative cost of working, E. B. 

 Dorsey on, 752. 



Rainfall, the determination of the amount 

 of, 508. 



Ramsay (Sir A. C.) on underground tem- 

 perature, 35. 



Ramsay (Prof. W.) on the properties of 

 solutions, 53 ; on the bibliography of 

 solution, ib. ; on the influence of the 

 silent discharge of electricity on oxy- 

 gen and other gases, 54 ; on the action 

 of light on the hydracids of the halo- 

 gens in presence of oxygen, 59; on 

 electrolysis in its physical and chemi- 

 cal bearings, 1'23. 



Rankin (B. D. J.) on the Zambezi Delta, 

 666. 



Raoult's method, an application of, to 

 aUoys, by C. T. Heycock and F. H. 

 Neville, 534. 



*Ravenstein (E. G.), geographical co- 

 ordinates in the valley of the Upper 

 Nile, 668. 



Rawson (Sir R.) on the effects of differ- 

 ent occupations and employments on 

 the physical development of the human 

 body, 186 ; on the work of the Corre- 

 sponding Societies Committee, 187. 



Ray-curvatures, brachistochrones, and 

 free paths, on the relations between, 

 by Prof. J. D. Everett, 498. 



Rayleigh (Prof. Lord) on the possibility 

 of calculating tables of certain mathe- 

 matical functions, 28 ; on standards 

 for use in electrical measurements, 41 ; 

 on electrolysis in its physical and 

 chemical bearings, 223 ; on the tones 

 of bells, 491 ; on pin-hole photography, 

 493 ; 'on the extensibility of liquid 

 films, 502. 



Reaction time, an instrument for mea- 

 suring, by F. Galton, 784. 



Readc (T. M.), the physiography of the 

 Lower Trias, 566. 



Readman (Dr. J. B.), the manufacture 

 of prussiate of potash, 535. 



Recalescence in iron, Prof. Barrett on, 

 618. 



Reid (C.) on an ancient sca-beacli near 

 Bridlington Quay, 70 ; on the Higher 

 Eocene beds of the Isle of Wight, 89. 



Reinold (Prof.) on electrolysis in its phy- 

 sical and chemical bearings, 223 ; on 

 the bibliography of spectroscopy, 344. 



Renard (the Abbe) on the collection and 

 identification of meteoric dust, 34. 



Reynolds (Prof. O.) on the investigation 

 of the action of waves and currents on 

 the beds and foreshores of estuaries 

 by means of working models, 327 ; on 

 model estuaries, 328. 



Richardson (Dr. A.) on the action of 

 light on the hydracids of the halogens 

 in presence of oxygen, 59 ; a new 

 form of self -registering actinometer, 

 540. 



Right of property in trees on another's 

 land, the, as an origin of rights of 

 property, by Hyde Clarke, 783. 



Riley (Dr. C. V.), note on the importation 

 and colonisation of parasites and other 

 natural enemies of insects injurious to 

 vegetation, 640. 



Riley (E.) on the best method of estab- 

 lishing international standards for 

 the analysis of iron and steel, 50. 



Risley (H. H.), the study of ethnology in 

 India, 785. 



River volumes and flood levels, records 

 of, by C. E. De Ranee, 748. 



Roberts (C.) on the effects of different 

 occupations and emplojments on the 

 physical development of the human 

 body, 186. 



Roberts (I.) on arranging an investigation 

 of the seasonal variations of tempera- 

 ture in lakes, rivers, and estuaries, 44 ; 

 on the circulation of underground 

 waters, 71. 



Roberts- Austen (Prof. W. C.) on the best 

 method of establishing international 

 standards for the analysis of iron and 

 steel, 50 ; on electrolysis in its physi- 

 cal and chemical bearings, 223 ; on 

 the influence of silicon on the proper- 

 ties of steel, 267 ; on the bibliography 

 of spectroscopy, 344. 



Romanes (Prof. G. J.), 'specific charac- 

 ters as useful and indifferent, 628 ; the 

 origin of human faculty, 791. 



Root-section, the effects of, on the vita- 

 lity of pasture plants. Prof. W. Fream 

 on, 648. 



Roscoc (Sir H. E.) on the best methods 

 of recording the direct intensity of 

 solar radiation, 40 ; on the teaching 

 of science in elementary schools, 131 ; 

 on the present methods of teaching 

 chemistry, 228. 



Riicker (Prof. A. W.) on electrolysis in 

 its physical and chemical bearings, 

 223 ; on comctic nebula}, 489 ; on the 



