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iv. The Optical Magio Lantern Journal and Photographio Enlarger, XYGEN Extracted from the Atmosphere by BRINS' PATENT PROCESS, absolutely free from Chlorine GRIFFITHS’
or deleterious matter of any kind. e Supplied at a few hours’ notice compressed in PATENT
Weldl Steel Cylinders, at 120 at heres © : Rain) of theegremen,. | Lantern Slide-Making XYGEN—40,000 Cubic Feet in stock. : ‘eo. A
XYGEN BLOW PIPES, for Soldering and Brazing, &e., inlet Electrical Engineers, Copper| Complete with Achromatic Lens — smiths, Plumbers, Glassblowers, &c. * 4 .
XYGEN for Limelight Mlumination, Magic Lanterns, | tate Square; ise ; Oblong (full plate), Tae Illuminated Advertising, &c. a . ” a" i
XYGEN — SPECIAL TERMS to Theatres and large : THE FIXED ENLARGEMENT CAMERA. Consumers. Tanks and bags are dispensed with,and : Large_Prints or Negatives from your Smal] Camera. back pressure and mixing of gases rendered impossible.
Explosions of Retorts and Chemicals are done away with,
The Oxygen is cheaper and purer than that made from chlorate of potash, and has no corrosive action on metal fittings.
Cire Each cylinder is tested under a pressure of Two Tons (4,4S0lbs.) on the square inch before being filled. These precautions render the use of compressed gases quite safe. To ensure that they aoe
have been observed when purchasing see that our | tito} Mie 16;2, 19. 10 by &, 22/6 name is stamped on both cylinder and valve. : £ to + plate, 19/10 by $, 2206 12 by 10, 26/A Large Stock of Cylinders, from 25s. to 94s., according to size; Couplings, Keys, Gauges, W. Regulators, Valves, &c., always on hand. ALTER GRIFFITHS, Agents in all Principal towns. a(n ’ : ot Soke Foner gr ade wT PE Patentee & Sole Maker of ths Guinea’ Detective Camera, oe MANCHESTER OXYGEN COMPANY, Ltd. HIGHGATE SQUARE, BIRMINGHAM. ‘ (Brins’ Putent), Wholesale Agents: MARION & CO., London; W. GREAT MARLBOROUGG ST., OXFORD RD., MANCHESTER. TYUAR, Aston, Birmingham. Sold by Dealers Manufacturers anit Compressors of all kinds of Gas. every where.
EBxXTRAONRDIN AR Y!!
A Fall Size bests JAPANNED LANTERN, with 4in. Compound Condensers and Portrait Front Lens with rackwork pinion adjustment, Three-wick paraffin lamp. Astonishing value, 27s. Ludgate Negative and Transparency Developer, per 10-0z. bottles, s.; post free, 1s. 6d. (Samples free.)
THE LUDGATE LANTERN AND PHOTO STORES (Price, Talbot, & Co,, Limited), 26, LUDGATE HILL, LONDON, E.C.
CRYSTAL PALACE. FOURTH NATIONAL PHOTOGRAPHIC EXHIBITION
AND OPTICAL LANTERN ENTERTAINMENT.
APRIL 1S87Tux TO MAY 2np, 1891.
ART DIVISION open to Professional and Amateur Photographers. The Alcoves and Screens will be placed in the Nave, thus ensuring an equally prominent position for each Exhibitor. A GOLD MEDAL will be awarded for the best Alcove, and a SILVER MEDAL for the best complete Screen.
The Classes for Amateura and Professionals will be kept separate and distinct, and a Special Class will be devoted to the work of Lady Amateurs. A SILVER MEDAL will be awarded to the best Picture in the Ladies’ Class.
The GRAND CHALLENGE CUP, for the best Collective Exhibit by a Photographic Club or
Association, will be again competed for.
A CHAMPION CLASS COMPETITION will be inaugurated. All Correspondence and Enquiries to be addressed to— THE MANAGER, CRYSTAL PALACE, 5S.E.