C5 06. 'i^- 



A WEEKLY ILLUSTRATED JuLRNAL OF SCIENCE. 



" To the solid ground 

 Of Nature trusts the mind which btiilds for aye." — Wordsworth. 



WIRELESS TELEGRAPHY 



IN THE BRITISH NAVY. 



The Order given to Messrs. Newton 

 and Co. for " APPS-NE WTON " INDUC- 

 TION COILS for fitting "Wireless Tele- 

 graphy to His Majesty's ships has since 

 been doubled by the Admiralty, and is 

 now the largest Order ever given for this 

 class of w^ork. 



NEW PHYSICAL LABORATORY TABLES. 



NEW^TON & CO., 



3 FLEET STREET, LONDON. 



THE NEW^ 



"LONDON" 



ICROSCOPE. 



With Eye -piece | inch, \ inch 



Object - glasses, in Mahogany 



Case, 



£5 12s. 6d. 



Double Nose-piece, 9/- extra. 

 Focussing Substage, 14/6 extra. 



R. & J. BECK, Ltd., 



68 CORNHILL, 

 1L.O JVX303V. 



REYNOLDS & BRANSON, Ltd., 



Manufacturers of Laboratory Fittings and every description 



of Scientific Apparatus. 

 Estimates and] X. E E !> S. [Catalogues Free. 



NEGRETTI & ZAMBRA'S 



IMPROVED 



SELF-RECORDINC RAIN- 



CAUCES, BAROMETERS & 



THERMOMETERS, 



Giving continuous Records 



on Charts wliich only require 



ciianging weekly. 



Invaluable to Invalids and 



others unable to take daily 



readings. 



Illustrated Price List of Instruments free by Post to all 

 , parts of the World. 



NEGRETTI & ZAWIB R .^ , -^.^ 

 38 HOLBORN VIADUCT, E.G. ~"T^ 



Branches : as CORNHILL. and 122 REGENT STREET. 

 AWARDED TWO GOLD MEDALS PARIS, EXHIBITION 1900. 



