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xiv. The Optical Magic Lantern Journal and Photographic Enlarger.
PATENTS and TRADEMARKS.
W. P. THOMPSON & CO,,
“ Telegraphic Address: DISCOVERY, LONDON.”
322, HIGH HOLBORN, LONDON,
Telephone No. 6823, HOLBORN
W.C.
Also at 6, LORD ST., LIVERPOOL; 6, BANK ST., MANCHESTER: LOWER TEMPLE ST., BIRMINGHAM.
Patents secured, maintained, defended and worked in all countries.
Oppositions conducted, searches made,
opinions on infringements g given, and expert evidence arranged. Trademarks, Designs and Copyrights secured and defended in all countries granting protection.
Handbook of Patent Law.
WW. WATSON &
Tenth Edition
British Portion, 6d. All countries, 2s. 6d.
SONS, Opticians to...
b.M. Government
313, High Holborn, London. ACTUAL MANUFACTURERS OF THE HIGHEST CLASS LANTERNS.
Lantern Slide Publishers.
Write for New Season’s List.
HUNDREDS OF NEW SLIDES. Artistie Colouring Undertaken.
IN LONDON
Skilled Operators Sent Any Distance.
LECTURES ARRANGED AND PUBLISHED.
W. WATSON & SONS,
Established 1837.
|| res || 313, HIGH HOLBORN,
LONDON.
BEARD’S
ECLIPSE CARRIER esr=v=
10/6 It Sindee an effect similar to dissolving. The Slides are inserted and withdrawn by a single movement.
BEARD’S COM PRESSED
GAS REGULATOR
mi 15 the only reliable Regulator giving perfect results with all kinds of jets.
Price 3O/-.
HANDFEED
ARG LAMPS.
All mechanical movements for centering arc. These Lamps are used by the Poly‘ANS technic, Queen's Hall, Royal , Photographic Society, etc. * Assender's “Trilby'’ and Marriott's Cimes Stocked, Wholesale and Retail.
¥ R. R. BEARD,
Lantern Expert and Manufacturer,
10, Trafalgar Rd., Old Kent Rd., LONDON, S.E.
GWYER’S ie spowER
LIMELIGHT JETS
Used in conjunction with a Pendant Saturator,
The Gwyer Jet will give the most perfect light for optical projection obtainable.
FREE TRIAL ALLOWED.
What a an 1 experienced Lanternist says :—
“TY vesterday sold my old Pendant Saturator so should like ancw one in its place. . . . The new Jet works very well indeed. I used it on Wednesday at a private trial in the Borough Hall here. It illuminated a picture at 80 feet distance with 15 inch lens. It worked quite easily and gave nearly as much light as the 10 ampere direct current arc lamp, and the arc lamp was not in the same street for evenness of light throughout.”
J.S. WILLWAY & SONS, ST. AUGUSTINE’S PARADE, BRISTOL.