1 8 STEREOSCOPIC PHOTOGRAPHY 



produced by an ordinary quarter-plate camera, 

 without any internal alteration by means of this 



Houghton's Holborn Stereoscopic Attachment. 



clever little instrument. There are so few 

 manuals upon Stereoscopic Photography that I 





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.-^: :; ;;gLlp.or< LENS '^ 



^TeR| ^<§Copic7 H^ri5niTrgg, 



Brown's Stereoscopic Transmitter. 



make no apology for introducing my readers to 

 this invention. In its cheapest form it costs 

 7s. 6d. 



