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AND PHOTOGRAPHIC
ENLARGER. ix.
Absolutely first for ACETYLENE.
““MOSS” patent independent central jets. 2 burner 10/6, 4 buiner 15/-. Six seasons’ tise. prove them the best.
There are other good jets, and a lot of first class generators, za) you cannot get the selection anywhere else.
Send stamp for lest.
What about that new drawer tray 2/6, and that tray purifier 5/-2 Why ! they are worth having.
Mettallic Bellows
Through Passage Regulator.
Gauge.
With regulator, 33/
20/THE SCOTCH & IRISH OXYGEN Co.,
St You Wish te Knew . . .
B.P. Combination Key.
Blacked, 7/6; Plated, 8/6.
Now then, wake up! Acetylene Gas is the light for you,
Better than any oil lamp.
Lanternists,
Better than mantles.
Nearly as good as limelight, besides being
Less trouble and more reliable than any of them, and quite as safe if not safer.
Send stamp for illustrated catalogue to the only practical lantern experts, who make a speciality of Acetylene.
R. J, MOSS & SONS, 98, Snow Hill, Birmingham.
Established 1896,
Tee Combination.
6/6. GLASGOW.
Ltd.,
—_—_—_
1.—What focus of lens is required to reproduce a certain size of disc, at a given distance ; 2.—What size of disc can be produced by a lens of given focus at a stated distance ; 3.—What distance a lantern must be from the screen to produce a certain sized disc with
a lens of given focus ;
SEND 2%d.
FOR A
Ready Reference Table
(ON CARDBOARD),
By J. HAY TAYLOR.
FASTEN IT ON THE LID OF LANTERN BOX.
Magic Lantern Journal Co., Ltd.,
Prince’s Chambers, Corporation Street, Birminghnm.