598 



INDEX. 



Pancreas and small intestine, some ob- 

 servations upon the hydrolytic ferments 

 of the (Brown and Heron), 393. 



Parker (W. K.) on the structure and 

 development of the skull in the 

 Batrachia, 435. 



(T. Jeffery) on the histology of 



Hydra fusca, 61. 



Periodicity of rainfall, results of an in- 

 quiry into the ( Whipple) , 70. 



Perry (J.) and W. E. Ayrton, a pre- 

 liminary account of the reduction of 

 observations on strained material, 

 Leyden jars, and voltameters, 411. 



Photographic spectra of stars, on the 

 (Hugging), 20. 



method of mapping the least re- 

 frangible end of the solar spectrum 

 (Abney), 67. 



Plants, Miocene, discovered on the 

 Mackenzie Biver (Heer), 560. 



Plasmodia, on the coalescence of amoe- 

 boid cells into (Greddes), 252. 



Potassium, on the modifications of the 

 spectrum of, which are effected by 

 the presence of phosphoric acid (Thu- 

 dichum) , 278. 



Preece (W. H.) on some thermal effects 

 of electric currents, 408. 



Presents, lists of, 122, 189, 295, 365, 

 463, 582. 



Protagon, a note on (Gramgee), 111. 

 on the absence of potassium in, 



prepared by Dr. Gramgee (Boscoe), 



365. 



Babbit, on the structure of the immature 

 ovarian ovum in the (S chafer), 237. 



observations upon the mode of 



formation of the Discus proligerus 

 in the (Schafer), 237. 



Rae (J.), elected, 468 ; admitted, 469. 



Bam say (William) on the critical state 

 of gases, 323. 



Beport on phyto-palseontological investi- 

 gations of the fossil flora of Alum Bay 

 (Ettingshausen), 228. 



Reproduction table, English (Farr),110. 



Reynolds (J. E.), elected, 468. 



(0.),note on thermal transpiration, 



in a letter to Professor Stokes, Sec. 

 R.S., 300. 



Rheotome, on a new (Sanderson), 383. 

 Robinson (Rev. T. R.) on the constants 



of the cup anemometer, 572. 

 Roscoe (H. E.) on the absence of 



potassium in protagon prepared by 



Dr. G-amgee, 365. 

 Rowe (R. C.), memoir on Abel's 



theorem, 515. 

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



integrals : No. 6, 100. 

 No. 7, 103. 



Russell (W. J.) and S. West on the rela- 

 tion of the urea to the total nitrogen 

 of the urine in disease, 438. 



■ on the amount of nitrogen 



excreted in the urine by man at rest. 

 444. 



Sanderson (J. B.), notice of further ex- 

 perimental researches on the time- 

 relations of the excitatory process in 

 the ventricle of the heart of the frog, 

 373. 



on a new rheotome, 383. 



Schafer (E. A.) and A. Dixey on the 

 structure of the immature ovarian 

 ovum in the common fowl and in the 

 rabbit. To which is appended some 

 observations upon the mode of forma- 

 tion of the Discus proligerus in the 

 rabbit, and of the ovarial glands or 

 " egg-tubes" in the dog, 237. 



- — ■ preliminary note on the ossifi- 

 cation of the terminal phalanges of the 

 digits, 550. 



Secular changes in the elements of the 

 orbit of a satellite revolving about a 

 tidally distorted planet, on the (Dar- 

 win), 1. 



Sensitive state of vacuum discharges, 

 on the (Spottiswoode and Moulton), 

 302. 



Siemens (C. W.) on the dynamo-electric 

 current, and on certain means to im- 

 prove its steadiness, 208. 



on the influence of electric light 



upon vegetation, and on certain phy- 

 sical principles involved, 210. 



some further observations on the 



influence of electric light upon vege- 

 tation, 293. 



Skull, on the structure and development 

 of the, in the Batrachia (Parker), 435. 



Smith (R. Angus), measurement of the 

 actinism of the sun : s rays and of day- 

 light, 355. 



Solar spectrum, photographic method of 

 mapping the least refrangible end of 

 the (Abney), 67. 



system, on a possible mode of de- 

 tecting a motion of the, through the 

 luminiferous ether (Maxwell), 108. 



Solubility of solids in gases, on the 

 (Hannay and Hogarth), 178. 



(Hannay), 484. 



Spectra of stars, on the photographic 

 (Huggins), 20. 



of magnesium and lithium (Live- 



ing and Dewar), 93. 



of compounds of carbon with 



hydrogen and nitrogen (Liveing and 

 Dewar), 152. 



No. II, 494. 



