f H < ® M A S Selection of Apparatus . . . The 2 2 , 0 0 0 items listed in our C a t a l o g u e a n d Supplement a n d carried in our stock h a v e been carefully selected upon the basis o f fifty-five years o f experience in providing f o r the needs o f laboratories o f Chemistry a n d Biology, both large and small. All, subjected to careful
examination
AH rvf fr O V U j C V , i e d το careful examination a n d testing b y our rne items have Technological staff. The choice is therefore based on what w e can with assurance recommend as being satisfactory f o r the purpose intended.
PC
Detailed
descriptions Descriptions a r e accurate a n d d e t a i l e d and include accessory and replacement parts.
A . H T . Co. Specification
items
M a n y important specialties a n d groups o f items such as lamp-blown a n d volumetric glassware, r u b b e r tubing, H R - 1 0 8 rubber stoppers, etc., generally listed under the designation, "A.H.T. Co. Specification," are in accordance with our designs or specifications. Such items a r e in our judgment, superior in design, performance, accuracy, a p p e a r a n c e or d u r a b i l i t y , to similar t r a d e articles.
Trade marked
or branded
items
W e list and stock many articles under the manufacturer's name or b r a n d a n d , while t h e maker is p r i m a r i l y responsible for the design and performance o f such a p p a r a t u s , w e take full responsibility—having exercised discrimination in our selection—for all t r a d e m a r k e d or branded.items listed b y us.
Miscellaneous
items
M a n y o f the remaining items such as spatulas, brushes, corks, files, aprons, d r o p p i n g pipettes, etc., a r e offered under neither our name nor that o f the maker. They a r e . o b t a i n a b l e in a v a r i e t y o f g r a d e s and from competing manufacturers. M a n y o f them a r e not m a d e p r i m a r i l y for l a b o r a t o r y use. The grades we have selected are of dependable quality and uniformity a n d will b e found highly satisfactory f o r l a b o r a t o r y use. "
More
and
ARTHUR H. THOMAS COMPANY
more ^
laboratories RELY O N
THOMAS
WEST W A S H I N G T O N SQUARE P H I L A D E L P H I A 5, P A ·
Teletype Services: W e s t e r n Union W U X and Bell System P H - 7 2
DEC. 5. 1955
C&EN
5287
