HARSHAW
SCIENTIFIC
announces . . . AN IMPORTANT ADDITION TO OUR COMPLETE UNE OF CHROMATOGRAPHY ITEMS The N e w Beckman G a s C h r o m a t o g r a p h — a precision, low-cost i n s t r u m e n t designed
specifically
for
analyzing
gases
and
mixtures of liquids that boil below 80°C. This instrument is simple in design, easy t o use a n d provides s p e e d , accuracy precision. For more detailed
and
information w r i t e f o r Bulletin 4 8 2 .
CHROMATOGRAPHY A N
HARSH
SCIENTIFIC
Division
of the Harshaw Chemical C o . · Cleveland 6, Ohio Sales B r a n c h e s a n d W a r e h o u s e s Cleveland 6, Ohio Detroit 2 8 , M i c h . Los A n g e l e s 2 2 , Calif. 1 9 4 5 East 9 7 t h St. 9 2 4 0 Hubbell A v e . 3 2 3 7 S. G a r f i e l d A v e . C i n c i n n a t i 13, O h i o H o u s t o n 1 1 , Texas P h i l a d e l p h i a 4 8 , Pa. 6 2 6 5 W i e h e Road 6 6 2 2 S u p p l y Row Jackson & Swanson Sts. Sales O f f i c e s : Buffalo 2 , N . Y. · Pittsburgh 2 2 , Pa. · O a k l a n d 1 1 , Calif. For further information, circle numbers 8 A - 1 , 8A-2 on Readers' Service Card, page 63 A
8A
ANALYTICAL
CHEMISTRY