408 



SCIENTIFIC NEWS. 



[April 27, if 



Foreign Affairs, the Cross of the Legion of Honour, by order 

 of the French Government, for great service rendered to the 

 Commission Internationale du Metre. 



The Brussels Exhibition. — We learn that the opening of 

 this exhibition has been postponed from May 5 to May 19. 



DIARY FOR NEXT WEEK. 



Monday, April 30.- 

 Tutsday, May l.- 



ical 



-Society of Arts, Cantor Lecture, at S p.m. 



— Decoration ; by Mr. G. Aitchison. 

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

 Old /ewish Legends on Biblical 'J opics ; 

 by Rev. A. Lbwy. Legendary Descriptions 

 of H.ll. 



Royal Institution. Annual meeting, at 1.30. 



Institution of Civil Engineers, at S p.m. — 

 The Distribution of Hydraulic Power in 

 London ; by Mr. E. B. Ellington. 



Parkes Museum, at 8 p.m. — Food {Includ- 

 ino Milk), Sale of Food and Drugs Act; 

 by Mr. Charles E. Cassal, F.I.C. 

 VV dnesdoy, May 2. — Entomological Society, at 7 p.m. 



Society ot Arts, at 8 p.m. — Drawing, a 

 Means of Education; by Mr. T. R. 

 Ablett. 

 Thursday, Moy 3. — Royal Society, at 4.30 p.m. 



Chemical Society, at 8 p.m. 



Royal Institution, at 3 p.m. — The Che; 

 Arts ; by Professor Dewar. 



Irstitution of Mechanical Engineers, at 

 7.30 p.m. — Third Report of the Research 

 Committee on Friction : Experiments on 

 the Friction of a Collar Bearing. Descrip- 

 tion of the Emery Testing A. achine ; by 

 Mr. Henry R. Towne. 



Camera Club. — Demonstraticn of the New 

 Plaiinotype Process ; by Mr. Willis. 

 Friday, May 4.— Royal United Service Institute, at 3 p.m. — 

 Horse Artillery ; by Captain M. Robertson. 



Royal Institution, at 9 p.m. — The In-vincible 

 Armada ; by Professor J. K. Laughton. 



Institution of Mechanical Engineers, at 2.30 

 p.m. — Supplementary Pafer on The Use 

 of Petroleum Refuse as Fuel in Locomotive 

 Engines ; by Mr. Thomas Urquhart. 



Parkes Museum, at 8 p.m. — Infectious 

 Diseases and Methods of Disinfection ; 

 by Mr. Shirley F. Murphy. 



Society of Arts (Indian Section) at 8 p.m. 

 — The Injurious Effects of Canal Irriga- 

 tion on the Health of the Population of the 

 Punjab ; by Surgeon - General H. W. 

 Bellew, C.S.I. 

 Saturday, May 5. — Royal Institution, at 3 p.m. — The LaUr 

 Works of Richard Wagner; by Mr. C. 

 Ambruster. 



SALES. 



The Charge for Advertisements in this Column is Sixpence for the 

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



Advertisements for this Column should be received by first post on 

 Tuesday to insure insertion in the folloiving mimbsr. 



Electric Light; no Batteries or Machinery required; 18 feet 

 free 5d. — G. Howard, 55, Percival Street, London. 



Patterns. — 100 fretwork, lOOiepousSe, 200 turning, 300 stencils ; 

 IS. each lot. — Collins, Summerlays Place, Bath. 



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. 



Matt Surface Sensitised Paper, most artistic tone, from 

 chocolate to platinolype, gd. sheet, free. — Medland, Borough. 



Brass Work, casting, turning, fitting, bronzing, plating, 

 lacquering, stamping, piercing, spinning ; anything intricate to 

 manufacture, new ideas, inventions, patents. — MoRLEY Hall 

 Works, Triangle, Hackney. 



New Book on the Lathe, with notice of new appliances, metal 

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

 Britannia Company, Colchester. 



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

 Gilbert, O.xford Road, Sheffield. 



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

 Gilbert, Oxford Road, Sheffield. 



Rubber Stamps for business or private use ; excellence 

 guaranteed ; lists id. — A. H. Pashley, 12-14, Ecclesall Road, 

 Sheffield. 



Electro - Plating and Gilding successfully taught. Every 

 lequisite supplied. — Address, Henkic, 234, Great Colmore-street, 

 Birmingham. 



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

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



Dynamo, l20-candle power, improved armature, iocs. Photo. 

 5 stamps. — D. Walton, Hebden Bridge, Yorkshire. 



Dynamo, 6o-candles, improved armature, 45s. ; photo. 5 stamps. 

 Castings, lamps, etc. ; wire from is. 4d. per lb. 



Dynamo, 30-c indies, 2Ss. ; lo-candles, 20s. Photo. 5 stamps 

 each — D. Walton, Hebden Bridge, Yorkshire. 



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

 £(> los.— P. M. RoGKRS, 21, Finsbuiy Pavement. 



Meerschaum and Briar Pipes Repaired, Mounted, or cased, 

 ambers fitted. — W. George, 324, Essex Road, Islington, London. 



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

 quire fixing, IS. sheet, free. Numerous testimonials. — Meoland, 

 Borough. 



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

 nately, regulator to battery, 17s. 6d. -Medland, Borough, 

 London. 



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. 



'• Inventors' and Manufacturers' Patent and Trade Mark 

 Pocket Guide," by G. C. Marks, C.E., 13, Temple Street, 

 Birmingham. Four stamps. 



"Sheet Metal Worker's Instructor," Warn's; few copies, 

 cheap, covers slightly soiled. — 94, St. Augustine's Road, N.W. 



Minerals, Fossils (Carboniferous, Lias), 12 specimens, 

 2s. 6d. ; polished specimens, 6d. to gJ. — C. Wardingley, Black- 

 wood Crescent, Edinburgh. 



'• Dynamo Construction for Amateurs and Engineers," 

 illustrated pamphlet, post free, is. — Alfred Crofts, Electrician, 

 Dover. 



EXCHANGES. 



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

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

 every succeeding eight words. 



Advertisements for this Column should be received by first post on 

 Ttiesday to insure insertion in the following number, 



X, Electro-Plating and Gilding taught to perfection; system 

 inexpensive ; distance no oliject ; exchange for anything uselul 

 (stamp). — Perks, 47, Alexandra Road, Richmond, Surrey. 



Models, Scientific Apparatus, Tools, or Machinery taken 

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

 44, Elsden-ioad, Tottenham, London, 



NOTICES. 



The Title Page and Index to Vol. I., First Series, 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, Ss. 



The BackNumbers of Scientific News can beobtained from 

 all Booksellers and Newsagents, or direct from the Publisher, 

 138, Fleet Street, London, E.G. Price 6d. each, or by post 

 7d. for the First Series, and 3d. each, or by post 3.Jd., for the 

 New Series. 



