

A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE. 



" To the solid ground 

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



NEWTON & GO.'s 



•NEW 



Science Lanterns. 



The finest series of inexpensive 

 Science Lanterns ever produced 



Write for Illustrated Catalogue just published 



(Post Free), or call at Messrs. NEWTON'S 



Demonstration Rooms — 



72 Wigmore Street, London, W. 



NEW 'LONDON 

 MICROSCOPE. 



THE HANDLE MODEL WITH 

 LARGE BASE. 



FINISHED IN BLACK ENAMEL. 

 This new model of the London Student's 

 Micro>cope has an extra laige and heavy 

 base, giving it gieal stability. 



Model and the 

 I ration sho 



the Handle 



illu 



No. 1326 Stand ...3 13 

 „ 364A Eyepiece 5 

 „ 802 |" Object 



Class 12 



„ 804 £'' Object 



Glass 1 10 



„ 302A Double 



Nosepiece 9 



6 9 



No. 1328 Stand with 



focussing substage, £4.7.6 



(as- illustration). 



R.& J.BECKLtd. 



68 CORNHILL. LONDON. E.C. 



REYNOLDS & BRANSON, Ltd. 



RYSTOS" MICROSCOPE 

 PLATFORM 



Gold Medals :— 

 London, 1908. 



Allahabad. 1911 

 ;rand Prix, Turin. 191 

 2 Medals, York, 1912 



For use with the Stroud & Rendell Science Lanterns. This platform 

 is adjustable, so that any ordinary microscope (the draw tube being 

 removed) can be used for projection work. The platform can be raised 

 or lowered in order that the optical centre of the microscope may 



coincide with that of the lantern •■• ■■■ ... £17 6 



Microscope as figured, with eyepiece and 1" and i" objectives... 7 5 

 \" objective for projection purposes ... ... -•■ ... ... 10 



New Catalogue 0/ Optical Lanterns a'"/ Accessory Apparatus 



Telescopes 



In our price-list of Telescopes will 

 be found illustrated and described 

 numerous patterns for Loofe-out 

 use, Astronomy, and many other 

 purposes. A copy of this list will 

 be sent post-free to any address. 



NEGRETTI &ZAMBRA 



Scientific Instrument Makers, 

 Holbotn Viaduct, London, E.C. 

 City Branch : 45 Cornhill, E.C. 

 West End : 122 Regent St., W. 



