Wollaston Camera Lucida 



Bly Model 



INFLUENCED by the inability of biologists 

 and illustrators to secure this useful instru- 

 ment, we have made a Wollaston Camera 

 Lucida that will give maximum convenience in 

 use. 



By use of this instrument a laboratory or field 

 specimen can be copied in reduced, enlarged, or 

 natural size. The eye looks into the prism, 

 placed above the drawing paper, and sees the 

 specimen apparently projected on the paper. 

 The image thus seen is simply traced. The ad- 

 vantage of this camera lucida lies in its simphcity 

 and the accuracy and rapidity with which a spec- 

 imen can be copied. It also permits important 

 features to be emphasized and unessentials to be 

 omitted. 



The stand telescopes in three sections and has 

 a table clamp with inclination joint. The prism 

 has all necessary adjustments. 



Price, $25.00 



Bausch £5 Ipmb Optical (p. 



HCW YORK WASHINGTON CHICAGO SAN FRANCISCO 



LONDON R,OCHESTEIl,N.Y. f^I^ANKFORT 



Leading American Manufacturers of Microscopes, Projection Apparatus 

 (Balopticons), Photographic Lenses, Engineering Instruments, Range Find- 

 ers, Binoculars, Ophthalmic Lenses and other High Grade Optical Products 



