SCIENCE- G OSSIF. 



Reuolutiotiisina Pbocograpbp. 



SPECTRUM 



f TWO 

 I BRANDS 



AND 



LIGHT FILTERS. 



Write for Booklet "Orthochromatic Photograph)" 

 (simplified), by James Cadett. Gratis. Post Free. 



CADETT & NEALL, Ltd. 

 ASHTEAD, SURREY. 



Photographic Dry Plate and Paper Manufacturers. 



THE 



flOMM 



Illustrated 

 Catalogue. 



ICKARD 



CAMERAS 



AND 



SHUTTERS 



M:ike Photography a 

 Pleasure. 



"AMBER"and "RUBY" 



Cameras for Hand or Stand. 



Price from £,'1 3s. 6d. 

 Time and Instantaneous 



Shutter, from 12s. Sd. 



«;s-= 



Standard Pattern, 



from 18s, 



6d. 



Prospectus and 



Entry Form for 



New £105 Prize 



Competition 



post free. 



The THORNTON-PICKARD 



Mauufaoturing Co., Ltd., 



HUGHES' SCIENTIFIC OPTICAL LANTERNS 

 AND CINEMATOGRAPHS^ 



Hughes' Marvellous \ 



PAMPHENGOS 



Gi\es brilliant 12-ft. picture.s like 



Limelighl. 

 The £4 4s. leduced to £3 lOS. 



THE 



SCIENCE LANTERN 



An Innovation. Perfect. 



OXY-HYDROCEN 



MICROSCOPES 



THE UNIVERSAL 



4-wick Lantern 



With 4-inch Condensers, 18s. 6d. 



HUGHES' LA PETITE 

 SNAP-SHOT CINEMATOGRAPH- 

 CAMERA, 

 Printer, Projector, Reverser, price 

 £6 IDs., reduced to £5 lOs. 



Grandly Illustrated Catalogue, iSo eiwiee Enpn'btgs, lOtl-: Swallcr ditto, S(l Graneily Illustrated Cinciiiatografh List, 6d. 



HUGHES' PHOTO-ROTOSCOPE CINEMATOGRAPH, £7 7s. ^^S^^^^S^^^i^^^^^^. 



®" FOR SALE, BARGAINS.— A fine 7; EQUATORIAL ASTRONOMICAL TELESCOPE, by Cooke, with Battery- of Ejepieces, cost 

 o\er £600 ; also a fine 4-inch latest, by Cooke. Ai\ S-inch Newtonian Reflector, £17 10s. : a sii-inch ditto, £11 15s. Several 

 44-inch Lancaster ; several sm.-iller. Also a fine BINOCULAR MICROSCOPE by Beck, cost £120 ; a ditto by Negretti & Zambra, 

 and several others. To be sold bargains. List Free, Can be had on the Hire-purchase system. 



X-RAY INDUCTION COILS. 5-, 6-, and S-inch Sparks. Barg.-iins. Quite new. Also Batteries. List Free. 



HUGHES' BIJOU ENLARGING LANTERNS. -l:^Z.^Z\:^^t^:^Z^LT^rliCr^^^^'^l^i^' 



artii^tic Enlargements. HeTore pnrrhasmg, see this high-class technical apparatus, which is scientifically constructed for results. Price List, tid. 

 300 Lecture Sets of Science Subjects and Travels^ &c. 60,000 Slides ; List^ Sd, Post Fjcc. 50 beautifully coloured 

 Slides loaned for 3s. By Subscription for the \ear. 4^0 lOs. 6d. : i.ooo 21s. Hire List ^ '■id. 



"W. C XIXJGrHEIS. Specialist in Optical Projection. 



Brewster House, 82 



(Established over 30 years.) 



Mortimer Road, Kingsland, LONDON, 



N. 



