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RECENT PAPERS IN THE ‘PHILOSOPHICAL TRANSACTIONS,’ 
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A. 342. Solar Eclipse of 1900, May 28.—General Discussion of Spectroscopic Eesults. By J. Ever s he d, 
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A. 343. The Electrical Conductivity Imparted to a Vacuum by Hot Conductors. By 0. IV. Eichardson, 
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A . 344. On the Formation of Definite Figures by the Deposition of Dust. By John Aitken, F.E.S. 
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A. 345. Title, Contents, Index, &c., Vol. 201. Price 6d. 
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A. 347. The Combination of Hydrogen and Chlorine Under the Influence of Light. By P. V. Bevan, 
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A. 348. Meteorological Observations obtained by the Use of Kites off the West Coast of Scotland, 1902. 
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A. 349. The Elasmometer, a New Interferential Form of Elasticity Apparatus. By A. E. H. Tutton, 
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A. 350. The Mechanical Forces Acting on a Charged Electric Condenser Moving through Space. By 
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A. 351. The Spectra of Neon, Krypton and Xenon. By E. C. C. Baly, Lectimer on Spectroscopy in 
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B. 212. The Development of Echinus Esculenhis, together with some Points in the Development of 
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B. 214. The Seed-Fungus of Lolium Temidentum, L., the Darnel. By E. M. Freeman, M.S., University 
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B. 215. On- the Histology of Uredo dispersa, Erikss., and the “Mycoplasni” Hypothesis. By 
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B. 216. The (Estrous Cycle and the Formation of the Corpus Luteum in the Sheep. By Francis H. A. 
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B. 217. On the Evolution of the Proboscidea. By C. AV. Andrews, D.Sc., F.G.S., British Aluseimi 
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B. 218. Experiments in Hybridization, with Special Eefei-ence to the Effect of Conditions on Dominance. 
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