36o 



SCIENTIFIC NEWS. 



[April 13, I S 



DIARY FOR NEXT WEEK. 



y, April 16. — Royal Colonial Institute, at 8 p.m. — 

 Colonial Forestry ; by Dr. J. C. Brown. 



Victoria Institute, at 8 p.m. — Mystical 

 Buddhism in connection with the Yoga 

 System of Philosophy ; by Sir Monier 

 Monier Williams. 



Society of Arts, Cantor Lecture, at 8 p.m. 

 — Milk Supply and 'Butter and Cheese- 

 Making ; by Mr. Richard Bannister. 

 Tuesday, April 17. — Institution of Civil Engineers, at 8 p.m. — 

 Discussion on Mr. Arthur Ayres' paper on 

 Compressed Oil Gas and its Applications. 

 The Distribution of Hydrattlic Power in 

 London; by Mr. Edward Baysand Elling- 

 ton. 



Royal Statistical Society, at 7.45 p.m. — 

 Progressive Taxation — Some Examples 

 from Switzerland; by Mr, R. H. J. Pal- 

 grave. 



Royal Institution, at 3 p.m. — John Ruskin ; 

 by Dr. C. Waldstein. 



Society of Arts. Foreign and Colonial 

 Section, at 8 p.m. — A Hundred Years' 

 Progress in New South Wales ; by Mr. W. 

 F. Buchanan. 



Parkes Museum, at 8 p.m. — Water Supply, 

 Drinking Water, Pollution of Water ; by 

 Dr. Louis Parkes. 

 Wednesday, Afrilli. — Royal Meteorological Society, at 7 p.m. 

 fordan's Ne-jj Pattern Photographic Sun- 

 shine Recorder ; by Mr. James B. Jordan. 

 On the Meteorology of South- Eastern China 

 in 1SS6; by Mr. William Doberck. 

 Lightning in Snoivstorms ; by Professor 

 A. S. Herschel. Insolation ; by Mr. 

 Rupert T. Smith. 



Society of Arts, at 8 p.m. — Telescopes for 

 Stellar Photography ; by Sir Howard 

 Grubb, F.R.S. 

 Thursday, April 19. — Royal Society, at 4.30 p.m. 



Chemical Society, at 8 p.m. 



Camera Club, at 8 p.m. — Discussion oj Regu- 

 lations for Photographic Exhibitions. 



Edinburgh Architectural Association, at 8 

 p.m. — The Esthetics of City Btiilding; 

 by Mr. J. Crabb Watt. 



Royal Institution, at 3 p.m. — The Chemical 

 Arts ; by Professor Dewar, F.R.S. 

 ■Friday, April 20. — Camera Club, at 8 p.m. — Printing Methods ; 

 by Mr. Lyonel Clark. 



Institution of Civil Engineers. Students' 

 Meeting, at 7.30 p.m. — Tlie Speed Trials 

 of the Latest Addition to the "Admiral " 

 Class of British War Vessels ; by Mr. 

 David S. Capper, M.A. 



Royal Institution, at 9 p.m. — Antagonism ; 

 by the Right Hon, Sir Wm. R. Grove. 



Parkes Museum, at 8 p.m. — Sanitary Ap- 

 pliances ; by Professor W, H. Corfield. 

 Saturday, April 21. — Royal Institution, at 3 p.m. — The Later 

 Works of Richard Wagner; by Mr. C. 

 Ambruster. 



SALES. 



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 first sixteen words, and Sixpence for every succeeding eight words. 

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What offers in cash or exchange for " Symon's Monthly 

 Meteorological Magazine," for 1884, 1885, 1886, clean and perfect ? 

 — 72, Cambridge Street, Birmingham. 



Chisel Steel, i to 5 feet bars, | to \\ octagon, 13s. per cwt. — 

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Microscopic Objects, figured and described by Martin ; 4s., 

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Bourne — Treatise on the Steam Engine ; quite new, 

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Bourne — Examples of steam, Air, and Gas Engines ; new, 

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Patents. — Nine months' protection, 50s. ; patent completed from 

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Ready-Toned Sensitised Paper. Brilliant prints, only re- 

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 Borough. 



Matt Surface Sensitised Paper, most artistic tone, from 

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New Dark Room Electric Lamp, ruby, orange, white alter- 

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 London. 



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Plating Dynamo, £2 ; gives six amperes, at two volts ; boy 

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Models, Scientific Apparatus, Tools, or Machinery taken 

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SELECTED BOOKS. 



Introductory Text-Book of Geology. By Professor David 

 Page, LL.D., etc., Durham University College of 

 Physical Science, Newcastle ; and Professor Charles 

 Lapworth, LL.D., Mason Science College, Birming- 

 ham. Twelfth edition, with engravings on wood 

 and glossarial index. London : Wm. Blackwood- 

 and Sons. Price 3s. 6d. 



Tea Cultivation and Manufacture. By E. Money. Fourth 

 edition. Whittingham. Price los. 6d. 



A Manual of the Mollusca. A Treatise on Recent and 

 Fossil Shells. By Dr. S. P. Woodward, A.L.S. 

 With Appendix by Ralph Tate, A.L.S., F.G.S. With 

 numerous Plates and 300 Woodcuts, Fourth edition. 

 London : Crosby Lockwood and Sons. Price 7s. 6d. 



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