Nbw Sbribs 



Vol. XXXVIII. No. 987 



Friday, November 28, 1913 



Single CopiEa, 15 Cts. 



ANNCAL SUBSORIPnON, $5.00 



A New Fine Focusing 

 Adjustment 



NEW MICROSCOPE FFS8 



New in design; giYQs very slow motion 

 — twelve and one-half revolutions of 

 micrometer head equal one revolu- 

 tion of head of ordinary microscope; 

 operating head turned clockwise al- 

 ways moves objective in the same direc- 

 tion as does the coarse adjustment 

 head turned the same way, with 

 -positive stops at upper and lower 

 limits of motion ; has automatic take- 

 up for wear; ceases to act- when ob- 

 jective touches the slide. 



Microscope FFS8 is first of new 

 series offered. Price, complete, 

 $72.00. Special price to schools 



Descriptive circular will be 

 sent on request 



^ DECIC 191$ 



BAUSCH & LOMB OPTICAL CO. 



409 St. Paul St. 



NEW YORK: 200 Fifth Ave. 

 WASHINGTON: 613 Fifteenth St., N.W. 

 CHICAGO: 122 S. Michigan Blvd. 



ROCHESTER, N. Y. ■— - 



SAN FRANCISCO: 154 Sutter St. 

 FRANKFURT, A.M.: G.m.b.H. 31 Schillerstrasse 

 LONDON: 37 and 38 Hatton Garden, E.C. 



