192 



SCIENTIFIC NE^VS. 



[Feb. 24, If 



DIARY FOR NEXT WEEK. 



Feb. 27.— London Institution, at 7 p.m. — Music, 

 Emotion, and Thought; Rev. H. R. 

 Haweis. 

 Bradford Naturalists' Society, at 7 '30 p.m. — 

 Life History of some of the Lepidoptera ; 

 Mr. B. lUingworth. 

 Cleveland Institution of Engineers, at 7-30 

 p.m.— 7X« Working of the New Patent 

 Law ; Mr. G. J. Clarkson. 

 Society of Arts, at 8 p.m. — The Modern 

 Microscope ; Mr. John Mayall, junr. 

 Tuesday, Feb. 28. — Royal Institution, at 3 p.m. — Before and 

 after Darwin ; Professor G. J. Romanes. 

 Institution of Civil Engineers, at 8 p.m. 

 h'ednesday, Feb. 29. — Civil and Mechanical Engineers' Society, at 

 7 p.m. — Our National Defences ; Mr. W. 

 C. Street. 

 Dundee Naturalists' Society, at 8 p.m. — 

 Notes on Zoogeography ; Mr. James Coates. 

 Cardiff Amateur Photographic Society, at S 



p.m. — Spirit Photographs ; Mr. D. Josti. 

 Royal Dublin Society.— T',^^ Making^ of 

 Ireland. Epoch I. The Mountain Lime- 

 stone ; Professor W. J. Sollas, F.R.S. 

 Society of Arts, at 8 p.m. — Discussion of the 

 Technical Education Bill. 

 Thursday, Mar. I. — Royal Institution, at 3 p.m. — Early Secular 

 Choral Music ; Professor C. H. H. Parry. 

 London Institution, at 6 p.m. — Glimpses into 

 the Parochial History of the City of London, 

 as gathered from the Records ; Dr. Edwin 

 Freshfield. 

 Parkes' Museum of Hygiene, at 5 p.m. — 

 Milk and Disease ; Mr. G. Sims Wood- 

 head. 

 Friday, Mar. 2. —Royal Institution, at 9 p.m. — Poisons and 

 Poisoning ; Dr. C. Meymott Tidy. 

 Royal United Service Institution. — The 

 Native Army of Bengal: Major-General 

 J. J. H. Gordon, C.B. 

 Royal Dublin Society.— 77z« Making of 

 Ireland. Epoch II. Coal. Professor W. 

 J. Sollas, F.R.S. 

 Sattirday, Mar. 3. — Royal Institution, at 3 p.m. — Experimental 

 Optics ; Lord Rayleigh. 



SALES. 



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Advertisements for this Column should be received by first post on 

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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. 



Opera Glasses. — Very powerful, adjustable for marine, field, 

 or opera, in case, and sling, by celebrated makers. Cost 5 guineas ; 

 offer wanted. — P., 25, Victoria-road, Kilburn. 



Sikes' Hydrometer, complete, weights, thermometer, trial 

 glass. Instruction. Warranted, 30s. — A. Townsend, Hereford. 



Camera, 8 by 5, slide and rectilinear lens, first class. Accept 

 lies. — Edward Hughes, Graigue, Kilkenny. 



" 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 

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 Birmingham. 



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

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

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



Microscope, French, 3 powers, 3 objects, forceps, in case, good 

 condition, for 20s. cash, books, or collection of postage stamps. — 

 H. Monckton, I, Hare-court, Temple, London. 



Lancaster's Instantograph Half-Plate, complete, in case, 2 

 double backs, printing frames, dishes, etc., all equal to new. — E. 

 Sanger, Rectory, Dursley. 



Telescope, sling leather case, by Stewart, first-class condition, 

 powerful lenses, price 30s. , or exchange for pair of field glasses. — 

 E. C. W., 13, Ashbury-road, Lavender-road, S.W. 



Meerschaum and Briar Pipes repaired, mounted, or cased ; 

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



Trouser Lengths, ss-. Cheap Cloth for Ladies' Dresses, 

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



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Wanted, last Edition of Ure's " Dictionary of Chemistry," 



in exchange for a microscope. — L. Brockweir, Gunnersbury. 



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. Bookman, 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 

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 44, Elsden-ioad, Tottenham, London. 



SELECTED BOOKS. 



The Story of Creation. By E. Clodd. London : Long- 

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Treatise on Photography. 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. 



Lectures on Electricity. By George Forbes. London : 

 Longmans, Green, and Co. Price 5s. 



An Easy Guide to the Constellations; imth a Miniature 

 Atlas of the Stars, and Key Maps. By the Rev. 

 James GalL London and Edinburgh : Gall and 

 Inglis. 



Management of Accumulators and Private Electric Light 

 Installations. A Practical Handbook. By Sir David 

 Salomans, Bart. Third Edition. London : Whit- 

 taker and Co. 

 The Earth's Story. By Dr. Brown. London : Cassell 



and Co. 

 Weather. By Ralph Abercromby. International Scientific 



Series. London : Keegan, Paul, and Co. 

 First Year of Scientific Knowledge. By Madame Paul 

 Bert. London : Relfe and Sons. 



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