NEWS
Other subjects to be covered in the 152 scientific papers include new in struments, liquid-liquid extraction, spectrophotometry, electron paramag netic resonance and micro techniques. Other events scheduled include a so cial hour, a conference dinner, and plant tours. Speaker at the dinner, to be held on Wednesday, March 5, will be Robert F. Mehl, Carnegie Institute of Technology. His subject is "Sci ence, Scientists, and Values." There will also be a meeting of ASTM Committee E-13 and E-2 (Emission Spectroscopy). The complete program and details concerning the exposition will appear in the February issue. Further details are available from James F. Miller, General Chairman, Box 1353, Pittsburgh 30, Pa.
AUTOMATIC FALLING DROP APPARATUS
for simple specific gravity measurements to ± 1 part per million — precise enough for direct isotope concentration determination Electronically gauges rate of descent of a known vol ume of sample liquid. FEATURES: •
Eliminates stop watch errors — nonsubjective determination.
•
Minimizes velocity gradient errors.
•
Controls uniformity and size of drops for extreme accuracy.
•
Drop volume indicated on a micrometer.
1958 Nuclear Congress and Atomfair to be Held in Chicago
• Completely transistorized circuit.
Scientific Instruments
The 1958 Nuclear Congress will be held at the International Ampitheatre in Chicago, March 17 to 21. The con gress is made up of three conferences and an exhibit: Fourth Nuclear Engi neering and Science Conference, Sixth Atomic Energy in Industry Conference, Sixth Hot Laboratories and Equipment Conference, and Atomic Industrial Forum Atomfair. Thirty-one scientific
Division
POLARAD ELECTRONICS CORPORATION 43-20 34th Street, Long Island City 1, Ν. Υ. · EXeter 2-4500 For further information, circle number 40 A-1 on Readers' Service Card, page 73 A
organizations, including the AMERICAN CHEMICAL SOCIETY, are cooperating in
conducting the Nuclear Congress. About 150 papers are expected to be given, dealing With some aspect of the congress' theme—industrializing the atom. Additional information may be ob tained by contacting International Atomic Exposition, Inc., Architects Bldg., Philadelphia 3, Pa.
British Microchemistry Symposium Planned
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ANALYTICAL CHEMISTRY
A symposium on microchemistry will be sponsored by the Society for Analyti cal Chemistry at Birmingham, England in 1958. The meeting, to take place Aug. 20 to 27, will be organized by the Midlands Section and the Microscopy Group of the society. The symposium will include all aspects of pure and ap plied chemistry, and is to be accom panied by an exhibit and historical dis play. Further information can be obtained from G. Ingram, Research Laboratory, Courtaulds, Ltd., Maidenhead, Berks, England.
Y O R K
WARE!
