SCIENCE. G OS SIP. 



Revolutionising Pbotograpbp. 



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. 



^Mtffifntfoyfapfy 



A FILMLESS CINEMATOGRAPH 



For taking and projecting life-size animated photographs with 

 greatest perfection to the extent of over 500 pictures. 



Specially constructed for the Amateur or Professional. 



Price £6 10s. 



Negatives and Positive 



Plates, 2/6 eaeh. 



Subject Plates, 3/-. 



6d. allowed for each Plate 



returned unbroken. 



SIMPLE and RELIABLE 

 MECHANISM. 



COMPLETE OUTFIT, 



including Kammatograph, Lan- 

 tern, Jet, Tripod Stand, Print- 

 ing Frame, Developing Tray, 

 &c, £11 lis. 

 With the KAMMATOGRAPH an ordinary dry glass plate is used 

 instead of cinematograph film. The method of developing KAM- 

 MATOGRAPH plates is exactly the same as with dry plates, thus 

 bringing cinematography within the reach of all. 

 SPECIALITIES— Can be seen at the Manufacturers. 



High-class Lantern and Jet, in travelling box £5 



Do., do., with patent electric arc lamp . . .. .. .. £6 



PATENT RHEOSTAT, which takes from 12 to S o amperes at 

 no volts without overheating. Price on Application. 

 Also made for 200 and 250 voltage. 

 Write for Catalogue to the Manufacturers : — 



L. ECAMM & CO., Scientific Engineers, 



Works-21f POWELL ST., GOSWELL RD„ LONDON, E.C. 



HUGHES' scientific OPTICAL LANTERNS 

 and CINEMAT OGRAPHS. 



Hughes' Marvellous 



PAMPHENGOS 



Gives brilliant 12-ft. pictures like 



Limelight. 

 The £4 4s. reduced to £3 10s. 



THE 



SCIENCE LANTERN 



An Innovation. Perfect. 



Grandly Illustrated Catalogue, 180 choice Engravings, lOd. ; Smaller ditto 



All Post Free, 



OXY-HYDROGEN 



MICROSCOPES 



— — W S HUGHES' LA PETITE 



THE UNIVERSAL SNAP-SHOT CINEMATOGRAPH- 



4-wick Lanfprn camera, 



t WIUIl LCUIICIII Printer, Projector, Reverser, price 

 With 4-inch Condensers, 18s. 6d. £6 10s., reduced to £5 10s. 



5d Grandly Illustrated Cinematograph List, 6d. 



HUGHES' PH0T0-ROT0SC0PE CINEMATOGRAPH, £7 7s. Alt ,^n ra Hi ^ h c, T wok Te h 



^^ .■•••vMMMi iaj cwi » «■ meal Flickering reduced to a minimum. 



F0R fAn E ', BAR fi GA, ^ S u'T A fi "V* EQUATORIAL ASTRONOMICAL TELESCOPE, by Cooke, with Battery of Eyepieces, cost 

 oyer *,t>00 ; also a fine 4 -inch latest, by Cooke. An 8-inch Newtonian Reflector, £17 10s. ; a si-inch ditto £11 15s. Several 

 4i-mch Lancaster ; several smaller. 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 8-inch Sparks. Bargains. Quite new. Also Batteries. List Free. 



HUGHES' BIJOU ENLARGING LANTERNS An innovation, rectangular or square condensers ; full marginal 

 """"T"*' "'", t, - t "" U " 1 **. "■«««""»■ 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, Vd. 



cim 3 P° h e ? tU -T e ^, et f 9 f Science Subjects and Travels, &C. 60,000 Slides ; List, Sd. Post Free. 50 beautifully coloured 

 Slides loaned for 3s. By Subscription for the year, 450 10s. 6d. ; 1,000 21s. Hire List, 4 4d. 



T7IT. O. IITTO-XIES 



Brewster House, 82 



9 Specialist in Optical Projection. 



(Established over 30 years.) 



Mortimer Road, Kingsland, LONDON, N. 



