SCIENCE-GOSSIP. 



Animated 

 Photography 



cfcam. 



for 



REGISTERED 



Amateurs. 



A combined Cinematograph and Snap- 

 shot Camera, Printer, Projector, 

 Reverser and Enlarge r, fitted with two 



SPECIAL VOIGTLANDER LENSES. 



Highly finished in polished Ebony. 



PRICE £6 6 



Patented. 



THE BIOKAM PROJECTOR, 



lor Projecting, Reversing and Enlarging, fitted with 



One VOIGTLANDliiR Wide Angle LENS 



and adapted to screw into Lens Flange of 



ANY EXISTING LANTERN. 



Finished in Polished Mahogany. Size 2 x 3 x 5J. Weight 16 oz. 

 Price £4 4 O 



Positive and Negative Films, perforated (length 25 ft.) price 3,6 ea. 

 Size 3 x 51 x 9|. Weight 2* lbs. Biokam Film Subjects (length 25 ft.) price 10s. each. 



For Sale by all Opticians and Photographic Dealers. Send for Handsome Illustrated Catalogue. 



The Warwick Trading Company Ltd,, 4 & 5, Warwick Court, High Holborn, London, w.c. 



ASTRONOMICAL TELESCOPES 



AND ACCESSORIES, 



REFLECTORS AND REFRACTORS of any Size, 



Equatorial Heads with Fixed or Portable Stands, 

 Observatories, Eyepieces, &c. 



TRANSIT INSTRUMENTS 



AS SUPPLIED FOR THE LEIGH PUBLIC TIME SIGNAL. 



Standard & Synchronising Clocks, Sidereal Clocks & Watches, &c. 



Send for Quotations for anything you may require. 



W. BANKS & Co., Manufacturing Opticians, 



18, CORPORATION STREET, BOLTON. 



Established 1876. Telegrams— " BANKS, CORPORATION STREET, BOLTON." 



