June 10-12, 1998. Three-day Practical Seminar on the operation and maintenance of Electrostatic Precipitators Conducted by Jacob Katz and Thomas Keeler, Holiday Inn-Central (Greentree), Pittsburgh, Pennsylvania, U.S.A. Contact: Precipitators Seminar, P.O. Box 554, Carlisle, Massachusetts 01741; telephone: (+1) 978-287-0550; fax: (+1) 978-287-0569.

June 15-16, 1998. 2nd Annual Asian Cement Markets '98 Organized by the Centre for Management Technology, Regal Hotel, Hong Kong Contact: Singapore 80, Marine Parade Road, #13-02 Parkway Parade, Singapore 449269; telephone: +(65) 346-9135; fax: (+65) 345-5928; e-mail: fara@cmtsp.com.sg

September 13-16, 1998. 8th International Symposium on Concrete Roads Organized by PIARC, Cembureau, and ATIC. Centro de Congressos-Feira Internacional de Lisboa, Lisbon, Portugal. Contact: Associcao Tecnica da Industria de Cimento (ATIC), Av. 5 de Outubro, n degrees 54-2 D, P-1050 Lisboa, Portugal; telephone: (351-1) 354 75 38; fax: (351-1) 352 50 99.

October 27-31, 1998. FICEM '98: 10th General Meeting of the Interamerican Cement Federation, Cartagena, Colombia. Contact: Carlos A. Ossa M., Colombian Institute of Cement Producers. telephone: (+57) 1 621 5500; fax: (+57) 1 621-4466.

November 24-27, 1998. 6th NCB International Seminar on Cement and Building Materials, New Delhi, India. Contact: Organizing Secretary, Post Box No. 3885, P-21, South Extension II, New Delhi-110 049, India; telephone: (+91) 129-242051 to 56, or 129-246174 and 75; fax: (+91) 129-242100; e-mail: nccbm@giasdl01.vsnl.net.in