624 



SCIENTIFIC NEWS. 



[June 29, 1888. 



DIARY FOR NEXT WEEK. 



Monday, fuly 2.- 



Tuesday, July 3.- 

 VVednesday, [tily 4.- 



Thursday, July S 

 J<riday, July 6. 



-Royal Institution, at 5 p.m. — General 

 Monthly Meeting. 



-Entomological Society, at 7 p.m. 



Camera Club. — Exiursioti to Otford, Kent. 

 -Camera Club. — Meeting to Compare Results 

 Obtained at the Erit'i and Belvedere Ex- 



■Royal United Service Institution, at 3 p.m. — 

 The Machinery of Modern War Ships ; by 

 Mr. H. J. Oram. 

 Geologists' Association, at 8 p.m. — On the 

 Rhatics and Lias of Glamorganshire ; 

 by Mr. H. B. Woodward, F.G.S. On the' 

 Geology of the Forest of Dean ; by Mr. E. 

 Wethered, F.G.S. , F.C.S. On the Clays 

 of Bedfordshire ; by Mr. A. C. G. Cameron. 

 Saturday, fuly 7. — Geological Association. — Excursion to 

 Lewisham, 



SALES. 



The Charge for Advertisements in this Column 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. 



Electro -Plating and Gilding successfully taught. Every 

 lequisite supplied. — 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. 



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. 



Microscope Slides. Large stock, intere.sting objects, from 5s. 

 dozen ; lists ; approval. — MiCROSCOPlST, 334, Caledonian Road, 

 London. 



British Flowering Plants. Weekly supplies required for 

 practical study. — Address, stating terms, B., 22, Osborne Terrace, 

 Clapham Road, S.W. 



Do your own Electro Plating and Gilding. System inex- 

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

 Richmond, Surrey, 



Steel Name Stamps, 3d. per letter. Figures (set), 2s. 4d 

 Post free. — F. Baldwin, Tuffley, Gloucester. 



Ready - Toned Sensitised Paper, splendid prints, only 

 requires fixing. Samples, 7 stamps. — E. Howard, 55, Percival 

 Street, London. 



EXCHANGES. 



Exchange Notices will be inserted in this Column at f^'^rate of 

 Sixpence for the first twenty four words, and TV. ..^.. 

 every succeeding eight words. 



Advertisements for this Cohimn 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. 



100 Geological Specimens, named. Exchange, los. 

 Approval. — Holden, Hoyland Nether, Barnsley. 



SELECTED BOOKS. 



Journal of tlie Royal Agricultural Society of England, 

 Vol. xxiv., Part I. Permanent Wheat and Barley 

 Experiments at Woburn, by Sir J. Lawes — Indian 

 Wheat Trade, by W. E. Bear — Practical Value of 

 Dung, by R. Vallentine — Laying Down Land to 

 Grass, by J. A. Caird — Wool and its Uses, by J. W. 

 Turner — Cider and Perry Making, by D. R. Chap- 

 man, etc. London : J. Murray. Price 6s. 



Pliysical Geology and Geograpliy of Great Britain. By 

 Sir Andrew C. Ramsay, LL.D., F.R.S., etc., late 

 Director-General of the Geological Survey. Fifth 

 edition. Considerably enlarged, and illustrated 

 with numerous sections, and a geological map of 

 Great Britain, printed in colours. London : E. Stan- 

 ford. Price 15s. 



The Cokoptera of the British Islands, Part XVL By the 

 Rev. Canon Fowler, M.A., F.L.S. Vol. I, 14s. 

 Large paper, with 36 coloured plates, 48s. Vol. IL 

 1 8s. London : L. Reeve and Co. Price 5s. 



Electricity and Magnetism (a Treatise on). (Methods 

 of Measurement and Applications). By E. Mascart, 

 Professor in the College de France, and J. Joubert, 

 Professor in the College Rollin. Translated by E. 

 Atkinson, Ph.D., F.C.S., late Professor of Experi- 

 mental Science in the Staff College. London : Thos. 

 De La Rue and Co. Price 21s. 



METEOROLOGICAL RETURNS. 



For the ten weeks ending on Monday, June i8th, 1888, specially prepared for Scientific News from official reports. 



The last -week of above period was the first this year wherein a temperature below freezing was not observed in any 

 portion of the kingdom ; last year freezing temperatures ceased to be observed with the week ending May 30th, and 

 jeappeared with the week ending September 19th. 



Xp^.A^xA' 



