INDEX. 



Hydrogen and oxygen, on the relative 

 'densities of, II (Rayleigh), 448. 



Instability of periodic motion, on 

 (Thomson), 194. 



Iron and nickel, note on the density of 

 alloys of (Hopkinson), 121. 



and other magnetic substances, on 



the influence of temperature upon the 

 magnetisation of (Wilde), 109. 



in chromatin, on the demonstra- 

 tion of the presence of, by micro- 

 chemical methods (Macallum), 277. 



Jeffery (Henry Martyn) obituary notice 



of, vii. 

 Johnson (Gk S.) on the bases (organic) 



in the juice of flesh. Part I, 287. 



Kew Committee, appendix to report for 



1890, 155. 

 Kilgour (H.) and W. E. Ayrton, the 



thermal emissivity of thin wires in 



air, 166. 



Langley (J. N.) on the origin from the 

 spinal cord of the cervical and upper 

 thoracic sympathetic fibres, with some 

 observations on white and grey rami 

 communicantes, 446. 



Lapworth (Charles) awarded Eoyal 

 medal, 229. 



Larynx, on the mechanism of the 

 closure of the. Preliminary com- 

 munication (Stuart), 323. 



Lees (C. H.) on the thermal conduc- 

 tivities of crystals and other bad con- 

 ductors, 421. 



Leyden jars, experiments on the dis- 

 charge of (Lodge), 2. 



Liquids, on the mechanical stretching 

 of, an experimental determination of 

 the volume - extensibility of ethyl 

 alcohol (Worthington), 423. 



Liver, on some of the variations observed 

 in the rabbit's, under certain physio- 

 logical and pathological circum- 

 stances (Brunton and Delepine), 209. 



Lockyer (J. N.) note on the spectrum 

 of Nova Aurigse, 431. 



on the new star in Auriga, 407, 



466. 



Locus of singular points and lines which 

 occur in connexion with the theory of 

 the locus of ultimate intersections of 

 a system of surfaces, on the (Hill), 

 180. 



lodge (O. J.) experiments on ths dis- 

 charge of Leyden jars, 2. 



Macallum (A. B.) on the demonstra- 



tion of the presence of iron in chrom- 

 atin by micro-chemical methods, 

 277. 



Magnetic disturbances at several ob- 

 servatories, comparison of simul- 

 taneous, and determination of the 

 value of the Gaussian functions for 

 those observatories (Adams), 129. 



Magnetisation of iron and other mag- 

 netic substances, on the influence of 

 temperature upon the (Wilde), 109. 



Mammalian heart, contributions to the 

 physiology and pathology of the (Roy 

 and Adami), 435. 



on the electromotive pheno- 

 mena of the (Bayliss and Starling), 

 211. 



Marcet (W.) researches on the absorp- 

 tion of oxygen and formation of 

 carbonic acid in ordinary human 

 respiration, and in the respiration of 

 air containing an excess of carbonic 

 acid, 58. 



Marr (John Edward) elected, 1. 



admitted, 79. 



Marshall (W.) and C. I. Burton, on 

 the measurement or the heat produced 

 by compressing liquids and solids, 

 130. 



Maxwell-Boltzmann doctrine regarding 

 distribution of energy, on some test 

 cases for the (Thomson) , 79. 



Mean density of the earth and the 

 gravitation constant, on a determina- 

 tion of the, by means of the common 

 balance (Poynting) , 40. 



Medals in the possession of the Royal 

 Society, catalogue of the, 524. 



Medals, presentation of the, 229. 



Meyer (Victor) awarded Davy medal, 

 231. 



Mirrors of telescopes, note on the 

 necessity of using well-annealed and 

 homogeneous glass for the (Common) , 

 252. 



Mond (Ludwig) elected, 1. 



admitted, 79. 



Mott (F. W.) results of hemisection of 

 the spinal cord in monkeys, 120. 



Myriapoda, a new mode of respiration 

 in the (Sinclair), 200, 358. 



Nickel and iron, note on the density of 



alloys of (Hopkinson), 121. 

 Noble (A.) note on the energy absorbed 



by friction in the bores of rifled guns, 



409. 

 Nova Aurigae, note on the spectrum of 



(Lockyer), 431. (See Auriga.) 

 preliminary note on (Hug- 



gins and Iluggins), 465. 



