SCIENCE. GOSSIP. 



Revolutionising Pbotograpbp* 



CADETT 



SPECTRUM 



LIGHT FILTERS. 



Write for Booklet "Orthochromatic Photography" 

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



CADETT&NEALL,Ltd. 

 ASHTEAD, SURREY. 



Photographic Dry Plate and Paper Manufacturers. 



THE 



HOMTON 



ICKARD 



CAMERAS 



AND 



SHUTTERS 



Make Photography a 



Pleasure. 



"AMBER "and "RUBY" 



Cameras for Hand or Stand. 



Price from £i 3s. 6d. 

 Time and Instantaneous 



Shutter, from 12s. 6d. 

 Standard Pattern, 



from 18s. 6d. 



Prospectus and 



Entry Form for 



New £105 Prize 



Competition 



post free. 



The THORNTON-PICKARD 



Manufacturing Co., Ltd., 

 ALTRINCHAM. 



HUGHES' scientific OPTICAL LANTERNS 

 and CINEMATOGRAPHS. 



Hughes' Marvellous 



PAMPHENGOS 



Gives brilliant 12-ft. pictures like 



Limelight. 

 The £4 4s. reduced to £3 10s. 



ELECTRIC LIGHT" 



SCIENCE LANTERNS 



An Innovation. Perfect. 



OXY-HYDROCEN 



MICROSCOPES 



HUGHES' LA PETITE 

 SNAP-SHOT CINEMATOGRAPH- 

 CAMERA, 



Printer, Projector, Reverser, price 

 £6 10s., reduced to £5 10s. 



THE UNIVERSAL 



4-wick Lantern 



With 4-inch Condensers, 18s. 6d 

 Grandly Illustrated Catalogue, 180 choice Engravings, lOd : Smaller ditto, 5d. Grandly Illustrated Cinematograph List 8d. 



All Post Free. 



HUCHES' PH0T0-R0T0SC0PE CINEMATOGRAPH, £7 7s. $£*&*&&£&££ 



©?" FOR SALE. BARGAIftSS.-Afineri EQUATORIAL ASTRONOMICAL TELESCOPE, by Cooke, with Battery of Eyepieces cost 

 over £600; 3 | Wrav, si Wray, 3-mch Equatorial Steward. An 8-inch Newtonian Reflector, 4 A-inch Lancaster and others 

 from £7 each : cost double. Also a fine BINOCULAR MICROSCOPE by Beck, cost £120 ; and several others which have been It 

 times allowed for as part payment. To be sold bargains. List Free. Can be had on the Hire-purchase system. 



X-RAY INDUCTION COILS, 5-, 6-, and 8-inch Sparks. Bargains. Quite new. Also Batteries. List Free. 



HUGHES' BIJOU ENLARGING LANTERNS. $\ innovation rectangular or square condensers ; full marginal 

 "rrl""^ ■*iww%r buihnuuiliu knil I blllig. definition, perfect il'ummation ; portable, reliable, rapid, quick, 

 arti-tic Enlargements. Before purchasing, see this high-class technical apparatus.which is scientifically constructed for results. Price List, 2d. 



ci-j 3 °° L 5 e ? tU , re % et f ° f Science Subjects and Travels, &C. 60,000 Slides ; List, 8d. Post Free. 50 beautifully coloured 

 Slides loaned for 3s. By Subscription for the year, 450 10s. 6d. ; i.ojo 21s. Hire List, '4^d. 



"IrtT* C XXTTGrXIlESS, Specialist in Optical Projection. 



(Established over 30 years.) 



Brewster House, «2 Mortimer Road, Kingsland, LONDON, N. 



