VOLUME
24, NO. 11, N O V E M B E R
1952
13A
MARTIN-MADE
Leakproof
GREASELESS STOPCOCKS New type ball valves now increase the scope of application of the well-known MARTIN Greaseless Stopcock to cover a wide range of operating conditions. Essentially a U tube with carefully ground valves, this stopcock employs mercury to seat the valves and stop theflowthrough the U. It has found wide application where contamination or leakage cannot be tolerated. Available with 12 mm. or 15 mm. side arms, with plain control stopcock, or unified mercury level control. Complete listing available upon request. Phone or write for prompt and courteous consultation and quotation. Catalog No. 48 showing the complete MARTIN line of high quality scientific glassware is available upon request.
H.S. MARTIN & CO.
[qtiâtoMi.Jsilt
1916-20 Gruenltof Street EVANSTON, ILLINOIS EvwcfMTA 6R 5-0707 · Otans TA AM 2-1325
M30950B
Μ3097ΌΒ
"SCIENTIFIC
GLASSWARE
OF SUPERIOR
QUALITY"
