514 



Pearson (K.) See Cave and Pearson. 

 Persulphuric acids (Armstrong and Lowry), 94. 

 Photographic action, strain theory of (Bose), 185. 



Plants, influence of varying amounts of carbon dioxide on (Brown and Escombe), 

 397 ; influence of excess of carbon dioxide on form and structure of (Farmer 

 and Chandler), 413. 



Platinum, microscopic effects of stress on (Andrews), 250; note on re-crystallisation 



of (Kosenhain), 252. 

 Polarisation-vector, differential equations of Fresnel's optical (Walker), 37. 

 Porter (T. C.) Contributions to the Study of Flicker, Paper II, 313. 

 Potter (M. C.) On the Parasitism of Pseudomonas destructans (Potter), 392. 

 Tseudomonas destructans, parasitism of (Potter), 392. 



Kamage (H.) A comparative Study of the Spectra, Densities, and Melting Points 

 of some Gfroups of Elements, and of the Relation of Properties to Atomic 

 Mass, 1 ; The Spectra of Potassium, Rubidium, and Caesium, and their Mutual 

 Relations, 303. 



Randies (W. B.) See Moore and Randies. 



Range-finder, a portable (Forbes), 347. 



Refractive indices of fluorite, quartz, calcite (Grifford), 329. 



Respiratory exchange, influence of an atmosphere of oxygen on (Hill and Macleod), 

 455. 



Retina, development of layers of, in the chick (Cameron), 84. 

 Reynolds (O.) and Smith (J. H.) On a Throw-testing Machine for Reversals of 

 Mean Stress, 41-. 



Ridewood (W. GK) On the Structure of the Grills of the Lamellibranchia, 499. 

 Rogers (L.) See Alcock and Rogers. 



Rosenhain (W.) A Note on the Re-crystallisation of Platinum, 252. 

 Rotating liquid cylinders, equilibrium of (Jeans), 46. 



St. Vincent, preliminary report on eruption of the Soufriere (Anderson and Flett), 

 423. 



Salmonoid fishes, action of spurge on (Kyle), 48. 

 Schoenese, Antarctic origin of (Clarke), 496. 

 Senter (Gr.) See Travers, Senter, and Jaquerod. 

 Skin, human, electric response of (Waller), 374. 



Smith (Gf. Elliot) On a Peculiarity of the Cerebral Commissures in certain 

 Marsupialia, not hitherto recognised as a Distinctive Feature of the Dipro- 

 todontia, 226. 



Smith (J. H.) See Reynolds and Smith. 



Solar and meteorological changes, phenomena suggesting a short period of (Lockyer 



and Lockyer) , 500. 

 Sorghum vulgar e, cyanogenesis in (Dunstan and Henry), 153. 

 Spark discharge in water, spectrum of (Lockyer), 31. 



Spectra of potassium, rubidium, and caesium, and mutual relations (Ramage), 303. 

 Spurge (Euphorbia hiberna), action of, on Salmonoid fishes (Kyle), 48. 

 Steel, experimental researches on drawn — magnetism, resistivity, &c. (Ashworth), 

 27. 



Strains, similarities between radiation and mechanical (Bose), 174. 



Temperature, measurement of (Travers, Senter, and Jaquerod), 484. 

 Throw-testing machine for reversals of stress (Reynolds and Smith), 44. 

 Torsional oscillations in nickel and iron, magnetic effect on (Grray and Wood), 294. 



