576 



SCIENTIFIC NEAVS. 



[June 15, lE 



DIARY FOR NEXT WEEK. 



Monday, June iS.^Victoria Institute, at 8 p.m. — The Botany 

 of Syria; by Prof. G. E. Post. 

 Bedford Naturalists' Society, at 7 p.m. — 

 Reports of Rambles and Exhibits. 



Tuesday, fune 19. — 



Wednesday, /tine 20. — Royal Meteorological Society, at 7 p.m. — 

 first Report of the Thunderstorm Com- 

 mittee. On the Photographs of Lightnins; 

 Flashes, drawn up by Hon. R. Aber- 

 cromby. The Cold Period from Septe?nber, 

 1887, to May, 188S ; by Mr. C. Harding. 

 Observations of Cloud Movements near the 

 Equator, and on the General Character of 

 the Weather in the Doldrums ; by Hon. 

 R. Abercromby. 



Thursday, Jtme 21. — Royal Society, at 4.30 p.m. 



Camera Club, at 8.30 p.m. — Meeting to 

 Compare Results obtained at the Ockham 

 Excursion. 



Friday, June 22. — Royal United Service Institution, at 3 p.m. — 

 Fire Discipline and the Supply of Am- 

 munition in the Field as provided for by 

 Foreign Powers ; by Captain W. H. 

 James. 

 British Museum, at 3.30 p.m. — The Social 

 Condition of the Babylonians ; by Mr. G. 

 Bertin. 



Saturday, fune 23.— Geological Association. — Excursion to 

 Godstone and Bletchingley. 

 Camera Club. — Excursion to Abbey Wood, 



Belvedere, and Erith. 

 Physical Society, at 3 p.m. — Note on Con- 

 tinuous Current Transformers ; by Prof. 

 S. P. Thompson. 



SALES. 



The Charge for Advertisements in this Colutnn is Sixpence for the 

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

 . Advertisements for this Column should be received by first post on 

 Tuesday to insure insertion in the following number. 



Large Assortment of Lathes, Planers, Drilling, Milling, 



and various new inventions and tools. — Britannia Company, 

 100, Houndsditch London.— All letters, Britannia Tool Factory 

 Colchester, England. Makers to the British Government. 



New Book on the Lathe, with notice of new applianes, metal- 

 spinning, milling, etc., in an ordinary lathe ; 3s. post free. — 

 Britannia Company, Colchester. 



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

 Gilbert, Oxford Road, Sheffield. 



Best Cast Steel for tools, taps, and dies, drills, 6d. per lb. — 

 Gilbert, Oxford Road, Sheffield. 



Electro - Plating and Gilding successfully taught. Every 

 lequisite supplied. — Address, Henric, 234, Great Colmote-street, 

 Birmingham. 



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

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



Fretwork, Carving, Turning, Woods, Tools, and all 



requisites. Catalogue with 700 illustrations, 6 stamps.— Harger, 

 Bros., Settle. 



Second-hand Lathes, and other tools, offered cheap ; on 

 view, Britannia Co., 100, Houndsditch, London. — Send 2 stamps 

 for list, to Britannia Works, Colchester. 



Sin. Burnishers, 7s. 6d. ! Silver steel bar, warranted : 6J in., 

 I2s. 6d. ; 9 in., 20s. ; 15 in., 40s. — C. C.'Vevers, Horsforth, Leeds. 



Photographic Specialities, cheap and good. — Stills, head- 

 rests, backgrounds, washing machines, lamps, shutters, etc. Lists 

 free. — C. C. Vevers, Horstorth, Leeds. 



Tricycle, front steerer, Coventry make, good condition, ^^5, 

 worth double. — Army Contractor, Granville, Sandgate, Kent. 



To Emigrants. — Beautiful double Breech-Loader, splendid con- 

 dition, 3 guineas, approval. — Hillsdon, Harbour House,Folkestone. 



Gilding and Electro-plating Taught. — Amateur's Complete 

 Outfit, with Instructions, 21s. ; list, I stamp. — Perks, Alexandra 

 Road, Richmond, Surrey. 



Dead Black Varnish for Cameras, Lenses, Dark Slides, etc. 

 — Bottles, post free, is. 3d. — H. Southgate, Maidenhead. 



Photography. " Vade Mecum." — A serviceable, complete set 

 for 32s. 6d. Everything necesssry for taking, printing, finishing. 

 Photo and particulars free. — Mercer, King Street, Sparkbrook, 

 Birmingham. 



EXCHANGES. 



Exchange Notices will be inserted in this Column at the rate of 

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

 every succeeding eight words. 



Advertisements for this Column should be received by first post on 

 Tuesday to insure insertion in the following number. 



Splendid Solar Microscope, in case, by Nairne, six powers. 

 Exchange photographic apparatus. — Ridout, Sunbury Common. 



too Geological Specimens, named. Exchange, los. 

 Approval. — Holden, Hoyland Nether, Barnsley. 



SELECTED BOOKS. 



British Petrography. With Special Reference to the 

 Igneous Rocks. By J. J. Harris Teall, M.A., F.G.S. 

 London : Dulau and Co. Price ^3 3s. 



Applications of Dynamics to Physics and Chendstry, By 

 J. J. Thomson, M.A., F.R.S., Fellow of Trinity 

 College, and Cavendish Professor of Experimental 

 Physics, Cambridge. With Diagrams. London : 

 Macmillan and Co. Price 7s. 6d. 



Horticulture. By F. W. Burbidge, author of " Domestic 

 Floriculture," " Cultivated Plants," etc. Uniform 

 in size and type with the " British Manufacturing 

 Industries." Edited by G. Phillips Bevan, F.G.S. 

 London : Edward Stanford. Price 4s. 6d. 



Sound Light and Heat. By the late Thomas Dunman. 

 Revised and Completed by Chapman Jones, 

 F.LC, F.C.S., Member of the Physical Society of 

 London, etc. With Explanatory D iagrams. Lon- 

 don : Ward, Lock, and Co. Price is. 



METEOROLOGICAL RETURNS. 



For the ten weeks ending on Monday, June 4th, 1888, specially prepared for Scientific News from official reports. 



