424 



SCIENTIFIC NEWS. 



[Oct. 19, iS 



SALES. 



The Charge for Advertisements in this Column is Sixpence /or 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. 



Electrical Apparatus. — Special batteries for cautery, require 

 no attention, plates remain in the liquid, no acids. 



Electrical Apparatus : Special hand, foot, and power dynamos, 

 for cautery, incandescent lighting, etc., wound with silk-covered 

 wire. 



Electrical Apparatus : Electromotors, dynamos, galvanometers, 

 resistances, batteries, etc. — G. Bowron, 97, Crawford Street, 

 London, W. 



Do your own Electro Plating and Gilding. System inex- 

 pensive. Particulars one stamp. — Perks, 47, Alexandra Road, 

 Richmond, Surrey. 



Watts' Gas Engines, all sizes, from \\ bore, slide explodes 

 charge, simple. Lists, 3 stamps. — Below. 



Watts' Gas Engines, work without noise, are easily made up. 

 Castings supplied. List, 3 stamps. — Below. 



Dynamos for plating and lighting, experimental dynamos, 

 electro motors, separate parts, wire, punchings, etc. — Below. 



Dynamos, highest efficiency, castings or finished. List, 2 stamps. 

 — Williams, Watt, and Co., Belshaw Street, Homerton, E. 



Mica or Talc cut for all purposes. Mica chimneys, Mica 

 covers, etc.— C. Johnson, 87, New Oxford Street, W.C. 



EXCHANGES. 



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

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

 every succeeding eight words. 



Advertisements for this Column should be received by first post on 

 Tuesday to insure insertion in the following number. 



Powerful Electro-Motor, Grigson's pattern, on polished 

 mahogany stand. Exchange for lantern slides, chromatropes, 

 etc., to value 3CS. — G. Harris, 17. York Street, Nottingham. 



Student's Microscope, 2 achromatic powers, in mahogany 

 cabinet, with 2 dozen best mounted slides. Exchange lantern 

 slides to value £z. — G. Harris, as above. 



NOTICES. 



The Title Page and Index to Vol. I., now ready, price 3d, 



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



Cases and Binding, Vol. I., including Title Page and Index, 

 price 3s. 



Vol. I., bound in cloth, with Title Page and Index, gs. 6d. 

 —by post 10s. 



The Back Numbers of Scientific News can be obtained 

 from all Booksellers and Newsagents, or direct from the 

 Publisher, 138, Fleet-street, London, E.C. Price 3d. each, or 

 by post 3|d. 



SELECTED BOOKS. 



Planetary and Stellar Studies, or Short Papers on the 

 Planets, Stars, and Nebulae. By J. Ellard Gore, 

 F.R.A.S. London : Roper and Drowley. 



The Building of the British Islands. A Study in Geo- 

 graphical Evolution. By A. J. Jukes-Browne, F.G.S., 

 of the Geological Society of England and Wales. 

 London : Bell and Co. Price 7s. 6d. 



The Metallurgy of Gold. A Practical Treatise on the 

 Metallurgical Treatment of Gold-bearing Ores, in- 

 cluding the processes of Concentration and Chlorina- 

 tion, and the Assaying and Refining of Gold. By 

 M. Eissler, formerly Assistant Assayer of the U.S. 

 Mint, San Francisco. With ninety illustrations. 

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



A Text-Book of Physiology. By Michael Foster, M.A., 

 M.D., LL.D.,F.R.S., Professor of Physiology in the 

 University of Cambridge, etc. With illustrations. 

 Fifth and thoroughly revised edition. In three 

 parts. Part I. comprising Book I., Blood — The 

 Tissues of Movement — The Vascular Mechanism. 

 London : Macmillan and Co. Price 10s. 6d. 



A Dictionary of Technical and Trade Terms of Archi- 

 tectural Design and Building Construction. Being 

 practical descriptions, with technical details of the 

 different departments connected with the various 

 subjects : with derivations of, and French and Ger- 

 man equivalents. Price 5s. London : Ward, Lock 

 and Co. 



DIARY FOR NEXT WEEK. 



Wednesday, Oct. 24. — Institution of Mechanical Engineers, 25, 

 Great George Street, Westminster, at 7.30 

 p.m. — Discussion of papers on Description 

 of Emery's Testing Machine, by Mr. Henry 

 R. Towne, of Stamford, Connecticut, U.S.A. 

 Description of the Compound Steam Tur- 

 bine and Turbo- Electric Generator, by the 

 Honourable Charles A. Parsons, of Gates- 

 head. 



Thursday, Oct. 25. — Institution of Mechanical Engineers, 25, 

 Great George Street, Westminster, at 7.30 

 p.m — Description of the Rathmines and 

 Rathgar Township Water Works, by Mr. 

 Arthur W. N. Tyrrell, of London ; Supple- 

 mentary Paper on the use of Petroleum 

 Refuse as Fuel in Locomotive Engines, by 

 Mr. Thomas Urquhart, Locomotive Super- 

 intendent, Grazi and Tsaritsin Railway, South 

 East Russia. 



METEOROLOGICAL RETURNS 



for the ten weeks ending on Monday, Oct. 8th, 1888. Specially prepared for Scientific News from official reports. 





Mean Temperature. 



Rainfall. 



Duration of Sunshine. 



Scotland, East 



51-5 degs. 



being 27 degs. below 



average. 



39ins., being 36 ins. 



below average. 



296 hrs. 



being 



12 hrs. 



below 



average 



England, N.E. 



52'6 „ 



1. 3'° JJ JJ 



'n 



4'I .. 



. 23 „ 



». .» 



266 „ 



1. 



19 :• 



11 



11 



England, East 



54'S „ 



i» 3'5 n ji 



i. 



49 » 



. i-o „ 



»i .. 



329 .. 



u 



9 .. 



11 



jj 



Midlands 



53-8 .. 



.. 3-8 „ ,. 





39.. 



> 3'° » 





3«7 .1 



ii 



4 11 



jj 



jj 



England, South 



5°"l >, 



>, 2 7 ,, j, 



II 



44.. 



, r8 „ 



>> .» 



355 .. 



ji 



7 „ 



above 



jj 



Scotland, West 



52'3 » 



., 2-4 „ „ 



II 



61 „ 



. 43 .. 



ji »> 



3 12 11 



ji 



2 •• 



jj 



jj 



England, N.W. 



53-6 „ 





99 



5-8.. 



, 2-5 „ 



u >> 



324 .1 



11 



14 i. 



*j 



ji 



England, S.W. 



54-8 „ 



» 3'° .. i) 



99 



61 „ 



. 3'6 „ 



.. .» 



375 .1 



j» 



15 •> 



below 



jj 



Ireland, North 



54 - i „ 



11 2'/ ,, ,, 



11 



6-3 „ 



. 17 ., 



99 JI 



259 •• 



jj 



° ., 



jj 



j> 



Ireland, South 



54'5 » 



>> 2*5 ,, ,1 



II 



47 .. 



. 3'6 ,. 



JJ JI 



334 ii 



jj 



11 „ 



above 



jj 



The Kingdom... 



53-8 „ 



)» 3'o u 11 



1) 



5-°.. 



, 27 „ 



J J J» 



316 „ 



jj 



3 .. 



below 



u 



