A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE. 



" To the solid ground 

 uf Nature trusts the mind which builds for aye." — Wordsworth. 





J UNI 2 1913 



THE "STONYHURST" 



SIMPLEX SUNSHINE RECORDER 



Records the intensity and 

 duration of sunshine for 24 

 hours on a prepared photo- 

 graphic chart which merely 

 requires washing in cold water 

 to become permanent. This 

 instrument, which is well made 

 and thoroughly efficient, has 

 been designed to enable accu- 

 rate records to be obtained by 

 those who do not wish to go 

 lecessary expense. The 

 yhurst " Simplex Sun- 

 Recorder, with divided 

 suit any latitude, with 

 ts and directions for 

 plete 35/- 



Sole Makers : 



NEWTON & CO., 72 Wigmore St., London, W. 



.Established ove> joo years. Telegrams : " Newtouar, London." 



Write for lllust ttttd Catalogue of Optical, Meteorological, and 



General Scientific Apparatus. Post free on request. 



NEW 'LONDON 

 MICROSCOPE. 



THE HANDLE MODEL WITH 



LARGE BASE. 

 FINISHED IN BLACK ENAMEL. 

 This new model of the London Student's 

 Microscope has an extra large and heavy 

 base, giving it great stability. 



Model 

 tration shows 

 venient patter 



the Handle 



the illu 



No. 1326 Stand ...3 13 

 ,, 364A Eyepiece 5 

 ,, 802 \" Object 



Glass 12 



,, 804 I" Object 



Glass 1 10 



„ 392A Doubl 



Nosepiece 9 



6 9 



No. 1328 Stand with 



focussing substag .£4.7.6 



(as illustration). 



R.&J.BECK,Ltd. 



68 CORNHILL LONDON. EC. 



REYNOLDS & BRANSON, Ltd , 



Chemical and Scientific Instrument Makers to His Majesty's 



Government (Indian, Home, and Colonial), Laboratory 



Furnishers and Manufacturing Chemists. 





"Rystos" Bench, 

 showing bottles 

 with enamelled 

 labels on eachside. 



One set of bottles re- 

 quired for each four 

 Students as supplied 

 to the Modern School, 

 Bedford, &c. 



CHEMICAL, PHYSICAL, and TECHNICAL LABORATORIES 

 Fully Equipped with BENCHES, FUME CHAMBERS, Ac. 



Institutions equipped : — 

 The Girls' High Schools at Barnsley, Beverley, Doncaster, Leeds and 

 Nuneaton ; Radley College, Oxford ; The Schools, Shrewsbury ; Wellington 

 College, Berks ; St. Mary's College, Winchester ; the Science Laboratories 

 at the Grammar School, Dunstable ; Laboratories at Messrs. Brunner, 

 Mond & Co., Ltd., Northwich, Cheshire ; the National Physical Labora- 

 tory, Teddington ; Transvaal Dept. of Agriculture ; (Experimental Farm), 

 South Africa; The Technical Schools, Morley and Yeadon ; Imperial 



Service College, Windsor ; and many others. 



Catalogue of Chemical and Physical Apparatus and Chemicals, 550 pp. 



and r,5oo Illustrations, post free on application. 



Designs of Benches and Fittings to suit all requirements. 



14 COMMERCIAL STREET, LEEDS. 



Self-Recording Barometers of the very 

 best quality and finish, with superior 



clockwork 

 move- 

 ment, and 

 in oak, 

 walnut, or 

 mahogany 

 cases. 



NEGRETTI & ZAMBRA 



Scientific Instrument Makers, 



Holborn Viaduct, London, E.C. 

 City Branch : 45 Cornhill, E.C. 

 West End: 122 Regent St, W. 



Write for 

 list of . 

 Recording 

 Instruments 

 — sent post 

 free. 



