EVERY LUTH
CHECKED! AGAl NST SPECIFICATIONS
Have you noticed the Lot Number on every. MC&B label? It means you can rely on the purity of MC&B chemicals because each lot is carefully checked against specifications in our analytical laboratory. And because our atmospheric-sensitive chemicals are packed under an inert gas, you can be sure they meet specifications when you are ready to use them.
For dependable purity in over 4,000 laboratory chemicals-SPECIFY MC&B. Write for catalog.
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Matheson Coleman & Bell Division of the Matheson Company, Inc. Norwood (Cincinnati), Ohio; East Rutherford, N. J.
