2l6 



SCIENTIFIC NEWS. 



[Mar. 2, iS 



DIARY FOR NEXT WEEK. 



Monday, Mar. 5. — Royal Institution, at 5 p.m. — General 



Monthly Meeting. 

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



The Modern Microscope; Mr. John 



Mayall, junr. 

 Victoria Institute, at 8 p.m. — Oriental 



Entomology ; Rev. F. A. Walker, D.D. 

 London Institution, at 5 p.m. — Glimpses into 



the Parochial History of the City of London, 



as gathered from the Records ; Mr. Edwin 



Freshfield, LL.D. 

 Society of Engineers, at 7-30 p.m. — The 



Effect' of Sea-water on Portland Cemetit ; 



Mr. Henry Faija. 

 Aristotelian Society, at 5 p.m. — Short Papers 



on Various Subjects. 

 Society of Chemical Industry, at 8 p.m. — 



The Recovery of Stilphur from Alkali 



Waste by Means of Lime- kiln Gases. — Mr. 



Alexander M. Chance. 



Tuesday, Mar. 6. — Royal Institution, at 3 p.m. — Before and 

 after Dai-win ; Professor G. J. Romanes. 



Institution of Civil Engineers, at 8 p.m. 



Society of Arts. Foreign and Colonial 

 Section, at 8 p.m. — South African Gold- 

 fields ; Mr. W. H. Penning. 



Society of Biblical Archeology, at 8 p.m. — 

 Le Manuscrit Copte No. i de la Biblio- 

 thique de Lord Zoiiche ; Professor Ame- 

 linean. Textes Egyptiens et Chaldiens 

 relatifs a V intercession des vivants en 

 faveur des mortes ; Professor Revillout. 



Wednesday, Mar. 7. — Society of Arts, at 8 p.m. — Frame-work 

 Knitting; Mr. W. T. Rowlett. 



Entomological Society, at 7 p.m. 



Royal Dublin Society, at 4 p.m. — Recent 

 Scientific Inventions; Professor W. F. 

 Barrett. 



Royal United Service Institution. — The con- 

 dition of the Mercantile Marine, Personal 

 and Material, with a View to its more 

 Complete Utilisation as a Reserve for the 

 Royal Navy ; Captain W. Crutchley. 



Thursday, Mar. 8. — Royal Society, at 4.30 p.m. 



Royal Institution, at 3 p.m. — Microscopic 

 Work on the Least and Simplest Forms of 

 Life ; Rev. W. H. Dallinger. 

 London Institution, at 6 p.m. — On Sound- 

 producing Organs in the Animal World; 

 Professor Charles Stewart. 

 Edinburgh Architectural Association. — The 

 Prevention of Down Draught in the 

 Ventilation oj Buildings, with a New 

 Formula for Calculating the Size of Outlet 

 Pipes and Wind-actitig Exhaust Venti- 

 lators ; Mr. W. P. Buchan. 

 Society of Telegraph Engineers and Elec- 

 tricians, at 8 p.m. 

 Friday, Mar. 9. — Royal Institution at 9 p.m. — S.T.Coleridge; 

 Mr. Leslie Stephen. 

 Royal Dublin Society, at 4 p.m. Electro- 

 lysis. — The Relation of Electricity to 

 Chemical Action ; Professor \V. A. Til- 

 den, D.Sc. 

 Institution of Civil Engineers, at 7.30 p.m. 

 — The Prevention and Extinction of Fires ; 

 Mr. Alfred Chatterton, B.Sc. 



Saturday, Mar. 10. — Royal Institution, at 3 p.m. — The Modern 

 Drama; Mr. W. Archer. 

 Physical Society, at 3 p.m. — On a Reflecting 

 Galvanometer; Mr. G. L. Addenbroke. 

 On a Theory Concerning the Sudden 

 I^oss of Magnetic Properties of Iron and 

 Nickel at High Temperature ; Mr. 

 Herbert Tomlinson. 



SALES. 



The Charge for Advertisements in this Column is Sixpence for the 

 first sixteen words, and Sixpence for every succeeding eiglitwords. 

 Advertisements for this Column should be received by first post on 

 Tuesday to insure insertion in the following number. 



Agents Wanted. — Morgan's Celebrated Improved Boiler Fluid 

 Composition. Fifteen years' success. — W. H. MORGAN, Chemical 

 Engineer, Gloucester. 



Fretwork Carving. — Catalogue of all requisites and 500 

 miniature designs free, 6 stamps.— Harger Bros., Settle. 



" Playground of Science," just ready, containing novel, 

 simple, and interesting scientific experiments, illustrated. One 

 Shilling, post free. — Truslove and Shirley, 7, St. Paul's-church- 

 yard, London. 



Electro -Plating and Gilding successfully taught. Every 

 requisite supplied. — Address, Henric, 234, Great Colmore-street, 

 Birmingham. 



Practical Hints on Electro-Plating, etc. — i stamp. — 

 Address, Henric, 234, Great Colmore-street, Birmingham. 



Wanted, Cabinet for Specimens, with not less than 12 

 drawers, about. 3 ins. deep. Send sketch and particulars addressed 

 D., care of Publisher, Scientific News, 138, Fleet-stret, E.C. 



Crayon Sketch from any photograph (returned uninjured), 

 15 by II, IS. 2d. free. — Mr. Coolthard, Bathwick, Bath. 



100 Fretwork, 200 turning patterns, 300 stencils, 50 con- 

 juring tricks ; Is. each — Collins, Summerlays-place, Bath. 



Meerschaum and Briar Pipes repaired, mounted, or cased ; 

 ambers fitted. — W. George, 324, Essex-road, Islington, London. 



Trouser Lengths, 5s., Cheap Cloth for Ladies' Dresses, 

 Mantles, Suits. Patterns free. — Hewitt, 27, Winfield, Leeds. 



EXCHANGES. 



Exchange Notices will be inserted i7i tliis Column at the rate of 

 Sixpence for the first twenty-four words, and Threepence for 

 every succeeding eight words. 



Advertisements for this Column sliould be received by first post on 

 Tuesday to insure insertion in the folloxuing number. 



Wanted, a Browning's Platyscopic Lens, for geological 

 purposes. — C. Carus-Wilson, West Bournemouth, Hants. 



Wanted, Mahogany Slide Case to hold 72 microscopic 

 slides ; also double nose-piece, bent form. Will give in exchange 

 microscopic slides, unbound volumes of magazines, or netted ham- 

 mock.— T. H. BOORMAN, Tenterden. 



Four-and-a-half in. Equatorial Reflecting Telescope, 

 divided circles, two eye-pieces, all adjustments ; particulars on 

 application; open to offers. — Holmes, 149, Essex-road. 



Models, Scientific Apparatus, Tools, or Machinery taken 

 in exchange for new goods or work done to order.- -Rotler Bros., 

 44, Elsden-ioad, Tottenham, London. 



SELECTED BOOKS. 



Tlie Story of Creatio7i. By E. Clodd. London : Long- 

 mans, Green, and Co. Price 6s. 



Treatise on Pfiotography. By Captain W. de W. Abney. 

 Fifth Edition. London : Longmans, Green, and Co. 

 Price 3s. 6d. 



Short Studies from Nature. London : Cassell and Co. 



Playground of Science. By Johnston Stephens. Lon- 

 don : Truslove and Shirley, is. 



NOTICES. 



The Title Page and Index to Vol. I., First Scries, now 

 ready, price 6d. 



Binding Cases for Vol. I., First Series, price 2s. each. 



Binding Cases and Binding, Vol. I., First Series, including 

 Title Page and Index, price 3s. 



Vol. I., First Series, bound in cloth, with Title Page and 

 Index, 7s. 6d. — by post 8s. 



The Back Numbersof Scientific News can be obtained from 

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 138, Fleet-street, London, E.C. Prices 6d. each, or by post 

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