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Rely on THOMAS oecause . . . You select from a 1736-page catalogue and supplement A n encyclopedic reference source with factual, detailed descriptions.
You deal with
headquarters
All orders filled promptly from one vast warehouse. Competent technological staff on call. Y o u draw on large stocks Adequate stocks of 22,000 prepackaged items for immediate shipment. Widest assortments of C o m i n g , Kimble and Coors items available from any single source. Y o u save time and money Expediting unnecessary — 8 3 % of orders shipped d a y received or day following. Accurate invoices a n d packing lists. Adequate packing which keeps breakage to less than 1/20 of 1 % . Advance quotations unnecessary — one-price policy insures lowest prices to all buyers. Y o u are
SYMBOL Of QUALITY
A.H.T.CO. I L»BO»»TO»Y *PP.»AT„S ι
assured of satisfaction Stocks carefully selected and continually inspected for dependable quality and satisfactory performance. Prompt refund for any item found unacceptable for any reason.
ARTHUR H. THOMAS Laboratory WEST
Apparatus
WASHINGTON
and
COMPANY
Reagents
SQUARE
PHILADELPHIA
5, P A .
Teletype Services: Western Union W U X a n d Bell System P H - 7 2
For further
30A
information, circle
number 30 A on Readers' Service
Card, page 61 A
ANALYTICAL
CHEMISTRY