832 



INDEX. 



300 ; on the advisability and possibility 

 of establishing observations upon the 

 prevalence of earth tremors, 333 ; on 

 excavations at Oldbury Hill, near Igh- 

 tham, 353; preliminary notes on the 

 excavations at Oldbury Hill, 651. 



Price (Prof. B.) on calculating tables of 

 certain mathematical functions, 129. 



Prothalli and the propagation of ferns, 

 facts regarding, by E. J. Lowe, 687. 



♦Protoplasmic rejuvenescence, fertilisa- 

 tion and conjugation processes as allied 

 modes of, Prof. M. Hartogon, 683. 



, a preliminary classification of 



sexual and allied modes of, by Prof. M. 

 Hartog, 683. 



Pterosaurian and plesiosanrian reptiles 

 in the cretaceous strata of Brazil, evi- 

 dence of the occurrence of, bj- A. S. 

 Woodward, 635. 



*Pyrometric measurements, certain, and 

 methods of recording them, by Prof. 

 W. C. Roberts-Austen, 607. 



Railway communications of India, bv 

 W. C. Furnivall, 744. 



Ramsay (Prof. W.) on electrolysis in its 

 physical and chemical bearings, 122 ; 

 on the inlluence of the silent dis- 

 charge of electricity on oxygen and 

 other gases, 204 ; on the bibliography 

 of solution, 273 ; on the properties of 

 solutions, ih. ; the surface-tension of 

 ether and alcohol at different tempera- 

 tures, 565 ; *on the nature of solution, 

 612. 



Ravenstein (E. G.), Address to the Geo- 

 graphical Section (the field of geo- 

 graphy) by, 703 ; *explanation of a 

 series of maps illustrating his Address, 

 718 ; *on the proposed formation of a 

 topographical society in Cardiff, 722. 



Rawson (Sir R.) on the work of the 

 Corresponding Societies Committee, 

 41. 



Rayleigh (Prof. Lord) on electrolysis in its 

 physical and chemical bearings, 122 : 

 on calculating tables of certain mathe- 

 matical functions, 129; on standards 

 for use in electrical measurements, 

 152 ; on redection near the polarising 

 angle from the clean surfaces of 

 liquids, 563. 



Recalescent points in iron and other 

 metals, the various phenomena con- 

 nected with the, third (interim) report 

 on, 147. 



Reed (Sir E.) on the Channel tubular 

 railwa}', 758. 



Reflection near the polarising angle from 

 the clean surfaces of liquids, Lord 

 Rayleigh on, 563. 



Reid (A. S.) on the collection, presc na- 



tion, and systematic registration of 

 photographs of geological interest in 

 the United Kingdom, 321. 



Reinold (I'rof.) on electrolysis in its 

 physical and chemical bearings, 122,- 

 on the bibliography of spectroscopy, 

 264. 



Respiration in tadpoles of the common 

 frog (Rami tcmjniraria), experiments 

 on, by Prof. W. N. Parker, 61)4. 



Revolving purifier for the treatment of 

 water by metallic iron, Dr. W. Ander- 

 son on the, 762. 



Rej'nolds (Prof. O.) on the investigation 

 of the action of waves and currents on 

 the beds and foreshores of estuaries- 

 by means of working models, 386 ; on 

 model estuaries, 387. 



Rhythm in plants, the artificial produc- 

 tion of, F. Darwin and D. F. M. Pertz 

 on, 695. 



Riley (Prof.) on the present state of our 

 knowledge of the zodlogy of the Sand- 

 wich Islands, and on the steps taken 

 to investigate ascertained dericiencies 

 in the fauna, 357. 



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

 blishing an international standard for 

 the analysis of iron and steel, 273. 



Roberts (I.) on the circulation of under- 

 ground waters, 300 ; on the advisability 

 and possibility of est aljlishing observa- 

 tions upon the prevalence of earth 

 tremors, 333 ; on arranging an investi- 

 gation of the seasonal variations of 

 temperature in lakes, rivers, and estu- 

 aries, 454. 



Roberts-Austen (Prof. W. C.) on elec- 

 trolysis in its physical and chemical 

 bearings, 122; on the various pheno- 

 mena connected with the recalescent 

 points in iron and other metals, 147 ; 

 on the bibliograpliy of spectroscopy, 

 264 ; on the best method of esta- 

 blishing an international standard for 

 the analysis of inm and steel, 273 ; 

 Address to the Chemical Section by, 

 584; *ccrtain p3rometric measure- 

 ments and methods of recording them, 

 607. 



and Prof. A. W. Riicker on the 



specific heat of basalt, 610. 



Robinson (Dr. A.), some points in the 

 early development of Mus musculus 

 and Mus decumanus : the relation of 

 the yolk sac to the decidua and the 

 placenta, 690; observations upon the 

 development of the sjiinal cord in Mu.s 

 musculus and Mus decumanus: the 

 formation of the septa and the tissures, 

 691. 



Robinson (Prof. W.), petroleum oil- 

 engines, 759. 



Rocks of S juth Pembrokeshire, the, and 



