SCIENCE— ADVERTISEMENTS 





National 



Methyl Alcohol 



WV BSOLUTELY neutral; free from the smallest 

 ^ \^^ trace of acetone; mtended especially for the 

 preparation of Blood Staining Solutions. 



Blood staining work, calling for the nicest precision 

 and the use of a number of dyes of complicated chemi- 

 cal structure, is frequently unsuccess- 

 ful because of slight acidity of the 

 solvent. In fact, experience has 

 shown that the greatest trouble has 

 been due, not to any impurities or 

 variations in the dyes, but to the 

 non-neutrality of the alcohol used. 



National Methyl Alcohol has 

 been developed to eliminate com- 

 pletely this possibility of error. We 

 believe it to be the purest alcohol 

 ever offered for laboratory work, 

 and recommend its use in all Blood 

 Staining Solutions. 



Pharmaceutical Division 

 National Aniline & Chemical Co., Inc. 



New York 



[ Pharmaceutical Di' 



Narional Aniline & ChemicsJ Company, Inc. 

 I 40 Rector Street, New York. 



the National Medicinal Products Catalog, Price Lists and Bulletin 



