News Tenn. July 25-29. Clara D. Craver and Norman Colthup. $250. Contact: T h e Director, Fisk Institute, Box 8, Fisk University, Nashville, Tenn. 37203
You don't have t o be in t h e picture f o r serial titrations. Let Mettler automate t h e Job· Do you have a large sample series to titrate? The Mettler DV/DK/ST System will handle the job for you automatically. Even overnight. Before the end of the work day, you select the desired titration program, set a few switches and leave. The next morning, all your samples are titrated, their content is calculated and neatly printed out. Because a desktop calculator as well as a Mettler balance is part of the system. A new series of samples can now be loaded on the transport system which is expandable to a capacity of up to 96 beakers. Start your program and use the time you gain for other tasks. Without supervision, the system predispenses one or several times, waits for the required period, then performs simple titrations, reverse titrations or even multicomponent determinations (up to 3) in a single run. For our new titration brochure, circle reader service number, or write Mettler Instrument Corporation, Box 100, Princeton, NJ 08540.
Mettlet Electronic balances and weighing systems Thermal analysis instruments Titration instruments Automated laboratory systems
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508 A • ANALYTICAL CHEMISTRY, VOL. 49, NO. 6, MAY 1977
Interpretation of Gas Chromatographic Mass Spectrometric Data: Environmental Applications Massachusetts Institute of Technology, Cambridge, Mass. Aug. 8-12. Ronald A. Hites, Klaus Biemann, Vernon N. Reinhold, and Catherine E. Costello. $550. Contact: Office of t h e Summer Session, Room E19-356, Massachusetts Institute of Technology, Cambridge, Mass. 02139 (617-2532101) Principles of Modern Light Microscopy Univ. of Massachusetts. Aug. 15-19. Cosponsored by t h e Royal Microscopy Society and t h e New York Microscopical Society. Royal Microscopical Society teaching faculty. $425 (includes course materials, tuition, and room and board for five days). Contact: Marion B. Rhodes, Dept. of Chemistry, Graduate Research Tower, Univ. of Massachusetts, Amherst, Mass. 01003 (413-545-2291) Photomicrography Univ. of Massachusetts. Aug. 22-26. Cosponsored by t h e Royal Microscopy Society and the New York Microscopical Society. Royal Microscopical Society teaching faculty. $425 (includes course materials, tuition, and room and board for five days). Contact: Marion B. Rhodes, Dept. of Chemistry, Graduate Research Tower, Univ. of Massachusetts, Amherst, Mass. 01003 (413-545-2291) N A T O Advanced Study Institute on Vibrational Intensities in Infrared and Raman Spectroscopy Hotel Villa Carlotta, Belgirate, Lake Maggiore, Italy. Sept. 1-10. Deadline for application, May 15.120.000 Italian lire (includes housing and full board). Contact: Willis B. Person, Univ. of Florida, Dept. of Chemistry, Gainesville, Fla. 32611 (904-392-0528)
For Your Information T h e American Society for Testing and Materials (ASTM) has announced t h a t some copies of t h e computer tapes of t h e 15th supplement of the ASTM Infrared Spectral Index m a y b e defective. Also, it is possible t h a t t h e program may have anomalies. For those people who have purchased
