INDEX. 



551 



prisca, Owen) from Australia, Part 

 III, 380. 



Pauli (W. B.), notes on the earthquakes 

 of July 1880, at Manila, 460. 



Pettersson (Otto) and L. P. Nilson, on 

 the essential properties and chemical 

 character of beryllium (glucinum), 37. 



on the molecular heat and 



volume of the rare earths and their 

 sulphates, 46. 



Photophonic experiments, on methods of 

 preparing selenium and other sub- 

 stances for (Bell), 72. 



Physical geology, notes on, No. YII 

 (Haughton), 473. 



Pigment, on the absorption of, by bac- 

 teria (Thin), 503. 



Placentation of the racoon (Watson), 

 325. 



Planet, on the tidal friction of a, attended 

 by several satellites (Darwin), 322. 



Platinum electrodes, on the thermo- 

 electric behaviour of aqueous solutions 

 with (Gore), 244. 



Polacanthus Foxii, a large undescribed 

 Dinosaur from the Wealden formation 

 in the Isle of Wight (Hulke), 336. 



Potential radix, on the, as a means of 

 calculating logarithms to any required 

 number of decimal places, with a sum- 

 mary of all preceding methods, chro- 

 nologically arranged (Ellis) , 398. 



Preece (W. H.) on the conversion of 

 radiant energy into sonorous vibra- 

 tions, 506. 



Presentation of the medals, 95. 



Presents, lists of, 138, 257, 350, 479. 



President's address, 74. 



Pritchard (U.), the cochlea of the Or- 

 nithorhynchus platypus compared with 

 that of ordinary mammals and of 

 birds, 149. 



Procyon lotor, on the female organs and 

 placentation of the (Watson), 325. 



Protagon, note on a communication made 

 to the Royal Society by Professor 

 Roscoe on the absence of potassium 

 in, prepared by Dr. Gamgee (Thudi- 

 chum), 282. 



Kacoon {Procyon lotor), on the female 

 organs and placentation of the (Wat- 

 son), 325. 



Radiant energy, on the conversion of, 

 into sonorous vibrations (Preece), 506. 



Radiant heat, action of an intermittent 

 beam of, upon gaseous matter (Tyn- 

 dall), 307. 



further experiments on the 



action of an intermittent beam of, on 



gaseous matter, thermometric mea- 

 surements (Tyndall), 478. 



Ramsay (W.) on the critical point, 194. 



Rare earths and their sulphates, on the 

 molecular heat and volume of the 

 (Nilson and Pettersson), 46. 



Rarefied ah', on heat conduction in 

 highly (Crookes), 239. ' 



Reflexion, some experiments on metallic, 

 No. II ' Conroy), 486. 



Refraction equivalents, the, of carbon, 

 hydrogen, oxygen, and nitrogen in 

 organic compounds (Gladstone), 327. 



Refrangibility, on a method of destroy- 

 ing the effects of slight errors of ad- 

 justment in experiments of changes of, 

 due to relative motions in the line of 

 sight (Stone), 381. 



Reinold (A. W.) and A. W. Rucker on 

 the electrical resistance of thin liquid 

 films, with a revision of Newton's 

 table of colours. 524. 



Respiration, experiments on the influence 

 of altitude on (Marcet), 418. 



Reynolds (J. E.), admitted, 524. 



Ringworm, on the fungus of (Thin), 501. 



Roscoe (Prof essoi') , note on a communi- 

 cation made to the Roval Society bv 

 (Thudiehum), 282. 



Royston-Pigott (G. W.), microscopical 

 researches in high power definition, 

 260. 



Rucker (A. W.) and A. W. Reinold on 

 the electrical resistance of thin liqui i 

 films, with a revision of Newton's 

 table of colours, 524. 



Russell (W. H. L.) on certain definite 

 integrals, No. VIII, 330. 



(W. J.) on the absorption spectra 



of cobalt salts, 51. 



Schafer (E. A.), note on the occurrence 

 of ganglion cells in the anterior roots 

 of the cat's spinal nerves, 348. 



note to the paper on the structure 



of the immature ovariaa ovum in the 

 common fowl and in the rabbit, 282. 



Schroter (C), note on the microscopic 

 examination of some fossil wood from 

 the Mackenzie River, 147. 



Schuster (A.) on the harmonic ratios in 

 the spectra of gases, 337. 



Secular inequalities in terrestrial cli- 

 mates, on the, depending on the peri- 

 helion longitude and eccentricity of 

 the earth's orbit (Haughton), 473. 



Seismograph, on a new (Ewing), 440. 



Selenium, on methods of preparing, for 

 photophonic experiments (Bell), 72. 



Sharpey (William), obituary notice of, x. 



Silver, on the effects of heat on the 

 chloride, bromide, and iodide of, and 



2 q 2 



