26 A
ANALYTICAL
CHEMISTRY
LABORATORY SERVICES Vitamin Assays Mineral Determinations Food Bacteriology Insecticide Testing
LEADING INDUSTRIAL RESEARCH LABORATORY
WISCONSIN ALUMNI RESEARCH FOUNDATION COORS PORCELAIN COMPANY k
P. 0 . Box 2059 Madison 1, Wisconsin
COLDEN. COLORADO
WELCH NEW D.C. PANEL METERS
20 MICROAMPERES SENSITIVITY USES
FEATURES • • • • •
Radiation Detectors Health Meters Kilovoltmeters Electronic Microammeters Colorimeters
Alnico Magnets Sapphire Jewel Bearings Selected Steel Pivots Fume-proof White Metal Scales Extremely Rigid Mountings
MODEL NO. 350 OTHER MODELS AND RANGES ARE AVAILABLE WRITE FOR OUR METER CATALOG
W. M. Welch S c i e n t i f i c C o m p a n y 1515 Sedgwick St., Dept. A. Established 1880 Chicago 10, Illinois, U.S.A.
These rugged, high sensitivity meters are a very important tool for the nuclear physicist. Used in conjunction with Geiger Counters, gamma ray intensities can be read directly as milliroentgens per hour. Special scales can be furnished.
