Men of Science 



The signs and symbols used in 

 your everyday work are provided 

 for in special keyboards prepared 

 for the Home 

 Typewriter, the 



Self-Starting 



Tell us your needs and we will sub- 

 mit a keyboard layout for your work. 

 No obligation, of course, on your part. 



Remington Typewriter Company, Inc. 



374 Broadway, New York City 



FINE INKS AND ADHESIVES 



For those who KNOW 



Higgins' 



Drawing Inks 

 eternal Writing; Ink 

 Engrossing Ink 

 Taurine Mucilage 

 Photo Mounter Paste 

 Drawing Board Paste 

 l.iquid Paste 

 Office Paste 

 Vegetable Glue, Etc. 



Are the Finest and Best Inks and Adhesives 



Emancipate yourself from the useof corrosive and 

 ill-smelline: inks and adhesives and adopt the 

 Higgins Inks and Adhesives. They will be a 

 revelation to you, they are so sweet, clean, well 

 put up, and withal so eflficient. 



At Dealers Generally 



CHAS. M. HIQQINS & CO., Mfrs. 



Branches: Chicago London 



271 Ninth street Brooklyn. N.Y. 



FS2 Microscope -Price $40.75 



^auscli [omb 



Microscopes 



are again in the market — backed by th^ 

 prestige which attaches to successful war 

 service in any significant capacity. 



Our release from this service is of course 

 gradual. As the demands made upon us by 

 the government are lessened from month to 

 month, however, we are enabled to increase 

 deliveries to our other patrons. 



Write for complete catalog of our revised microscope line 

 and inform us regarding your requirements. 



gausch ^ Ipmb Optical (5. 



41 2 ST. PAUL STREET ROCHESTER, N.Y. 

 New York Washington Chicago San Francisco 



Leading American Makers of Photographic Lenses, Microscopes, Projection Apparatus (Baloptlcons) , Ophthalmic Lenses 

 and Instruments, Pholomicrographic Apparatus, Range Finders and Gun Sights for Army and Naoy, Searchlight Reflectors, 

 Stereo-Prism Binoculars, Magnifiers and Other High-Grade Optical Products. 



