SCIENCE-GOSSIP. 



Reoolutionisiiig PDoto^rapftp* 



SPECTRUM 



LIGHT FILTERS. 



Write for Booklet "Orthochromatic Photography" 

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



CADETT&NEALL,Ltcl. 

 ASHTEAD, SURREY. 



Photographic Dry Plate and Paper Manufacturers. 



THE 



HORHTON 



Illustrated 

 Catalogue. 



ICKARD 



CAMERAS 



AND 



SHUTTERS 



Make Photography a 



Pleasure. 



"AMBER "and "RUBY" 



Cameras for Hand or Stand. 



Price from £,1 3s. 6d. 

 Time and Instantaneous 



Shutter, from 12s. ed. 

 Standard Pattern, 



from 18s. ed. 



Prospectus and 



Entry Form for 



New £105 Prize 



Competition 



post free. 



The THORNTON-PICKARD 



Manufacturing Co., Ltd., 



HUGHES' SCIENTIFIC OPTICAL LANTERNS 



AND CINEMATOGRAPHS. 



Hughes' Marvellous 



PAMPHENGOS 



Gives brilliant 12-ft. pictures like 



Limelight. 

 The £4 4s. reduced to £3 lOs. 



ELECTRIC LIGHT 



SCIENCE LANTERNS 



An Innovation. Perfect. 



Grandly Illustraied Catalogue, iSo choice Engravings, 



OXY-HYOROCEN 



MICROSCOPES 



mmnwawwrsa HUGHES' LA PETITE 



THE UNIVERSAL SNAP-SHOT CINEMATOGRAPH- 



d-wiclc Lantpfti camera, 



__ ■» WHIUn hCI,III.CIII Printer, Projector, Reverser, price 



With 4-mch Condensers, I8S. 6d. £6 lOs., reduced to £5 lOs. 



lOd. ; Smal/er ditto, 5d. Grandly Illustrated Cinematograph List, 8d. 

 All Post Free. 



HUGHES' PHOTO-ROTOSCOPE CINEMATOGRAPH, £7 7s. ^flF^-- Hghia s w„ ,^ ^^, 



^jg„ ■—■•■•»■ w««i»««»» ■■, tfa^a ■ »■ nical Flickering reduced to a mmimum. 



^^^ finn^'.^,^"®^"^,^"~"'^ fine 7| EQUATORIAL ASTRONOMICAL TELESCOPE, by Cooke, with Battery of Eyepieces, cost 



%^^lill'i\ fj'^;^, aT' ^-'S*^"^ Eqijatorial Steward An 8-inch Newtonian Reflector, 4A.inch Lancaster, and others, 



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



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 An-nnovation, rectangular or square condensers ; fuH marginal 

 ,VeT.^^P-nl!^ / R r ■■"^r*"""?" ■-"'^ ■ tnnO. definition, perfect illumination ; portable, reliable, rapid, quick, 



artistic Enlargements. Before purchasing, see this high-class technical apparatus.which is scientifically constructed for results. Price List, fid 



'ir,AB?^?r.}ff^"'r^ ^®*l ?* Science Subjects and Travels, &o. 60,000 Slides ; List, 8d. Post Free, so beautifully coloured 

 Slides loaned for 3s. By Subscription for the year, 450 lOs. 6d. ; 1,000 21s. Hire List, '-ild. 



"WT^ C5. HXJGrHiES, Specialist in Optical Projection. 



Established over 30 years. 



Brewster House, 82 Mortimer Road, Kingsland, LONDON, N. 



