SERVALL
NEWS
SS-1
electrical, optical, and radiochemical methods, organic complexes, statistical interpretation of results, absorption and partition methods, standardization of methods, and general. Further details are available from Professor Laurent, Instituto Superior Técnico, Avenida Rovisco Pais, Lisbon, Portugal.
The ORIGINAL Superspeed Angle Centrifuge
Seventh Pittsburgh Conference, February 27-March 2 It takes pioneering " k n o w - h o w " to produce operating quality t h a t sets trade standards. T h a t is w h y leading laboratories and researchers select t h e SERVALL SS^l, the ORIG INAL Superspeed Angle Centrifuge. • C A P A C I T Y : Precision-machined, anodized duralumin rotor accommodates eight 50-ml tubes at a 35° angle in separately numbered compartments. Accessory adapters available for 15-ml, 10-ml, and 5-ml tubes. • E C O N O M Y : Economical operation is a dividend on Jow initial cost. • P E R F O R M A N C E : Speeds u p t o 15,000-rpm exert 29,000 X G . allows continuously-variable speeds.
Voltage-adjuster
• VERSATILITY: Less than 1 4 " high-—can be operated on a small table, inside refrig erator, deep-freeze, cold room. Rotor easily adapted for use in SERVALL R E F R I G E RATED CENTRIFUGE. • SAFETY: Dynamic balancing w i t h self-centering, no-thrust drive—Originated b y SERVALL—promotes smoothness, long bearing-life, and rapid sedimentation. Type SS-1A, same as SS-1 but w i t h water-cooled bearing assembly for extra heavy d u t y . Write for Bulletin
Ivan
AC-101
Sown II* Inc.
P. O . BOX 230, NORWALK, CONNECTICUT For further information, circle number 36 A-1 on Readers' Service Card, page 61 A
For Your LABORATORY
GLASSWORKING EQUIPMENT
for Catalog C-54
burgh Section of the AMERICAN CHEMICAL SOCIETY and the Spectroscopy
Society of Pittsburgh. As in the past, the conference will be devoted to all phases of analysis, including spectrophotometry, electroanalysis, microanalysis, emission spectroscopy, infrared and ultraviolet absorption spectroscopy, mass spectrometry, radiofrequency, and x-ray fluorescence and absorption techniques. Deadline for abstracts is November 18. Details concerning papers are available from Julia Senko, Program Chairman, Westinghouse Research Laboratories, East Pittsburgh, Pa.
Eastern Joint Computer Conference
α complete Une of
Write today
The Seventh Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy will be held at the William Penn Hotel, February 27 to March 2, 1956. Its sponsors are the Analytical Chemistry Group of the Pitts-
Bethlehem Lob-Lathe Bethlehem Seal-Crib Lathe Burners Blast Burners Hand Torches Glassworking Tools Wet-Cut (Glass Cut-off Machine)
The Eastern Joint Computer Conference will be held at the Hotel Statler, Boston, Mass., November 7 to 9. Sessions will be held on the role of computers in business; cards, tapes, and other records in electronic accounting systems; trends in system design; and communication and compatibility among electronic computers in business and industrial use, including statements from manufacturers on standardization of magnetic tape records, with discussion. Computers in Basic Business Applications. F . J . P O R T E R , Consolidated Edison C o . of New York. Operations Control with an Electronic Computer. B. F. B U T L E R , General Electric Co. Manual U s e of Automatic Records. ANTHONY
OETTINGER,
Harvard
University
C o m p u t a t i o n Laboratory. Evaluation of Sorting Methods.
J . C.
H O S K E N , A. D . L i t t l e , I n c .
BETHLEHEM Apparatus Company, Inc. HELLERTOWN,
PENNSYLVANIA
Document Processing. R. H . GREGORY, Massachusetts I n s t i t u t e of Technology. The Computer and Its Peripheral Equipment. N . ROCHESTER, I n t e r n a t i o n a l Business Machines Corp. Computers with Remote Data Input. E. L. FITZGERALD, E. I. du P o n t de Nemours & Co., Inc. Developments in Programming Research. C. W . ADAMS, Westinghouse Electric Corp.
For further information, circle number 38 A-2 on Readers' Service Card, page 61 A
38 A
ANALYTICAL
CHEMISTRY
