4A
ANALYTICAL
What's the difference? Look to the stop-gaps for the differences. Not so small either when they tie up production, irk highly skilled technicians, require repair. Costly too. No guarantee went with it at the time of purchase. Those are the differences. And that's why cost cannot enter into the price of scientific equipment. Precision-Freas Ovens are not made to save you money but to give you con-
stant fidelity under the hardest of working conditions. The Freas Oven is guaranteed—we test every instrument far beyond expected capacity, because it must please us in its performance—and Precision Scientific is lots harder to please than the most case-hardened purchasing agent. To us it must be the best that money can buy. That's the difference!
Precision Scientific FREAS A N D THELCO PURCHASE
FROM
YOUR
PRECISION
3737 West C o r t l a n d
Street
OVENS
LABORATORY SCIENTIFIC .
Chicago
SUPPLY
47: Illinois
DEALER
CHEMISTRY
