VOLUME
2 4, N O . 4, A P R I L
1952
25 A
c u s t o m ·bilt
Highest S CQuality IENTIFIC GLASSWARE Built for Dependable Performancve This Trade-mark is Your Assurance of the Highest Quality... In every MARTIN-MADE scientific glassware p r o d u c t , whether it be the most intricate design developed by M A R T I N "custom-bilt" Glass Engineering or simple standard taper ware, the H. S. MARTIN trademark identifies only the best glass blowing skill and highest quality materials. Phone or write for prompt and courteous consultation or quotation; Catalog N o . 4 8 is available upon request.
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H . S. M A R T I N & C O M P A N Y , E V A N S T O N , 1 9 1 6 - 2 0 Greenleaf Street, EVANSTON, ILL.—TEL GR 5 - 0 7 0 7
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ILLINOIS
CHICAGO TEL.—AM 2 - 1 3 2 5