Send for MCB's FREE new catalog containing the world's longest line of laboratory chemicals.Tear the "labeF'off this brown bottle and mail it to us today. Here's the latest way to keep in touch w i t h over 10,000 chemicals. Flip through our new 296-page catalog and you'll find chemicals for every conceivable type of laboratory. Organics . . . inorganics . . . biological stains . . . ACS reagents . . . special quality lines. There's even a new 50 page section on unusual research chemicals. You name i t ! There is a good possibility you can quickly put your finger on the right c o m p o u n d . For fast action, mail the coupon today. Matheson Coleman & Bell Manufacturing Chemists Norwood, Ohio; Los Angeles, Calif.; East Rutherford, N. J. Circle No. 44 on Readers' Service Card
