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THE OPTICAL
{MAGIC LANTERN
— JOURNAL ——
AND
PHOTOGRAPHIC ENLARGER.
A Magazine of Popular Science for the Lecture-room and Edited byJ.Haytavtor. the Domestic Circle. ie al
Stationers’ Hall.
Vol. 5.—No. 59. APRIL 1, 1894. Price 1d., Post-free 2d.
J. Trai Taxtor, in British Journal of Photography, says :--‘‘ Messrs. Perken, Son, and Rayment claim to have produced a trinle-wick oil lamp, in which the luminosity is equal to ONE HUNDRED CANDLE POWER—while the light is very pure, and the heat less than usual. We have been present at trials made with it, and find their allegations asto PURITY and INTENSITY OF FLAME are maintained.”
T. Bovas, in Photographic Work, says:—‘‘The Optimus 100 Candle Power Oil Lamp the light certainly surprised us. . . The brightness—and above all the whiteness—of the disc recalling a lime light. . . ."
Amateur Photographer, Nov 10, 1893.—“ Messrs. Perken, Son, and Rayment, of 99, Hatton Garden, have just introduced a great improvement in oil-lamps, which will be warmly welcomed by all who use this form of illuminant. From the diagram it will be seen that central as well as side air shafts are provided, and with the greater supply of air is combined greater illumination and greater freedom from smell. We have had an opportunity of severely testing this lamp against some of of the best ordinary forms, and the increase in illuminaticn is at least three times. : . . . . . The whiteness of the light is so much increased that this should be ‘.. ~~~ useful for enlarging.” ; _ . :
By means of air shafts enormous increase of brilliancy is secured (which has Wek been computed to equal three times the candle power of the refulgent lamps “Optimus” 1893-4 Patent Lamp
hitherto sold with magic lanterns—zide Report of Meeting, Bristol Photographic for Projection Lantern. Association, Feb. 24, 1893). 3-wicks. 2-ia. wide, with chimney 25/each.
PERKEN, SON & RAYMENT, ° ui con's’ LONDON. “OPTIMUS. | MAGIG LANTERNS AND SLIDES.
nin WALTER TYLER'S NEW BOOK, with full instructions for working ~H all kinds of Lanterns and Apparatus, costing several hundreds of pounds, = will be sent FREE on receipt of six stamps, which includes postage.
cee “WALTER TYLER'S HELIOSCOPIC is without doubt the best lantern N ING manufactured ; most brilliant light ; perfect definition. Moderate price.
o Nei Can be had on approval. ; ‘ NINE GREAT REDUCTIONS.—Walter Tyler is now lending Slides at XA .) ‘ less than 6d. per doz. by customers paying subscription. Fifty ——— slides lent on hire for 3s., either coloured or plain; no extra
= i charge for chromotypes or effects.
If you require GOOD AND CHEAP LANTERNS call and inspect Walter Tyler's immense stock, or write for new list. Very great bargains in second-hand lanterns and slides, gas cylinders, regulators, screens, stands, and all kinds of apparatus.
Upwards of 300,000 SLIDES always instock. Great bargains in secondhand lanterns and slides. Second-hand list and small catalogue post free.
Best Quality. Lowest Prices. Prompt Despatch.
WALTER TYLER, 48 50, WATERLOO ROAD, LONDON.
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EDWARDS ISOCHROMATIC PLATES
EDWARDS LANTERN PLATES.