xxvi 



ADVERTISEMENTS. 



THE DOCRAW TRIPLE, 



Prize Medal, Highest Award, Photographic Exhibition. 



fitted with High-class Objectives. 



THE GRAND TRIPLE, 



Price 42. 



Will give from 10 to 

 30 feet pictures. 



HUGHES' NEW LARGE-DIAMETER LONG-FOCUS OBJEC- 

 TIVES, for projecting a Picture at a very long distance without loss of light. 

 Most splendid definition and results, as supplied to B. J. Maiden, Esq., Rev. 

 Frank White, Colin Docwra, Esq., who pronounce them perfection. (See 

 Testimonials and Opinions of the Press). 



HUGHES' PATENT OXYHYDROGEN MICROSCOPE, also 

 NEW MICROSCOPE ATTACKMENT; will show Eye of Fly 16 ft. in diameter. 



HUGHES' EXPERIMENTAL LANTERN, with a Pamphengos 

 or Limelight for showing solid objects, as constructed for W. Lant Carpenter, 

 Esq., B.A., B.Sc., for the Victoria Hall, London, at from 80 to 100 feet from 

 screen ; also Free Trade Hall, Manchester, for Prof. Forbes, with tremendous 

 success, to over 5,000 working men. 



ELABORATELY ILLUSTBATED CATALOGUE, PULL OF VALUABLE IMTOBMATION, 

 300 PA.QBS, Is., POSTAGB 4d. ; DITTO PAMPHLET, 4d., POSTAGE Id. 



W. C. HUGHES, Brewster House, Mortimer Rd, Kingsland. 



