SCIENCE 



TOI. XXXVI. NO. 917 



Fkiday, July 26, 1912 



SineLi corisB, 16 Cn. 

 Annual SDBicBiFTioH,ge.OO 



Laboratory Workers 



who have occasion to draw from microscopic objects 

 should be equipped with the new 



pauscli '|omb 





v^; 



^%ja! MusSii^ 



SIMPLE DRAWING APPARATUS 



Will accommodate any standard microscope. 



Enables one to work with eye at normal reading distance from pencil, avoiding 

 eye strain. 



Simply but accurately constructed. 



Price, as illustrated, without microscope, $25.00. 



Special prices to Schools. Send for descriptive circular 1 5 AD. 



Bausch ^ Iptnb Optical @. 



'new YORK WASHINGTON CHICAGO SAN FRANCISCO 



LONDON ROCH ESTER,, N.Y. f^ANKrORT 



