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HELP WANTED ADS ROP display at ROP rates. Rate based on number of insertions within contract year. Cannot be combined for frequency. Unit 1" (25 mm)
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ANALYTICAL CHEMISTRY Laboratory Service Center (Equipment, Materials, Services, Instruments for Leasing), Maximum space — 4 inches per advertisement. Column width, 2 - 3 / 1 6 " ; two column width, 4 - 9 / 1 6 " . Artwork accepted. No combi nation of directory rates with ROP advertising. Rates based on number of inches used within 12 months from first date of first insertion. Per inch: 1 " — $ 1 4 1 ; 1 2 " — $139; 2 4 " — $136; 3 6 " — $ 1 3 1 ; 4 8 " — $ 1 2 8 . CALL OR WRITE JANE
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. . . . because it's the most useful.
Published since 1955, the annual LabGuide leads all others in advertising pages and in reader usage (22,000 references daily). It's the true one-stop buying source where most manufacturers say with their ads, "Here we are. Compare our products with those of our competitors." That's why in more than six out of ten purchases by the 277,000 users it serves, the LabGuide is consulted before the purchase is made.
1326 A • ANALYTICAL CHEMISTRY, VOL. 59, NO. 22, NOVEMBER 15, 1987
