Telecommunications in Shipping May 26-28 Seminar organized by Seatrade Academy. American Bureau of Shipping Auditorium, 65 Broadway, New York City. Contact Seatrade, 17 Battery Place, New York, N.Y. 10004; (212) 422-6470.

Portex '81: International Port Exhibition and Conference May 26-30 Organized by Hamburg Messe und Congress GmbH, and sponsored by the Senate of the Free and Hanseatic City of Hamburg. Exhibition Grounds, Hamburg, West Germany. Contact Hans J. Rathje, The Hamburg Group, 545 Madison Avenue, New York, N.Y. 10022; (212) 758-4651. (Preview in May 1 issue of MR/EN)

MARSIM '81: Second International Conference on Marine Simulation June 1-5 Cosponsored by the National Maritime Research Center, and others. U.S. Merchant Marine Academy, Kings Point, N.Y. Contact MARSIM '81, National Maritime Research Center, Kings Point, N.Y. 11024; (516) 482-8200.

8th Ocean Energy Conference June 7-11 Sponsored by the U.S. Department of Energy, and organized by The Marine Technology Society. Capital Hilton Hotel, Washington, D.C. Contact MTS, 1730 M Street N.W., Washington, D.C. 20036; (202) 659-3251.

XV Biennial Conference June 7-12 Sponsored by the International Cargo Handling Coordination Association. Edmonton Plaza Hotel, Edmonton, Alberta, Canada. Contact Peter J. Elias, conference administrator, 418 Legislative Building, Edmonton, Alberta, Canada; (403) 427-2080.

Dynamics of World Coal Trade June 10-11 Symposium sponsored by the Maritime Association of the Port of New York, the National Coal Association, and the N.Y. Journal of Commerce. Biltmore Hotel, New York City. Contact C.S. Truog, Maritime Association, 80 Broad Street, New York, N.Y. 10004; (212) 425-5704.

ICE TECH '81: SNAME Spring Meeting/STAR Symposium June 16-19 Sponsored by The Society of Naval Architects and Marine Engineers, and hosted by the Eastern Canadian Section. Chateau Laurier Hotel, Ottawa, Ontario, Canada. Contact SNAME, One World Trade Center, Suite 1369, New York, N.Y. 10048; (212) 432-0310. (Preview in May 1 issue of MR/EN)

Ro-Ro 81: 5th International Conference and Exhibition on Marine Transport using Roll-on/Roll-off Methods June 30-July 2 Organized by Business Meetings Limited. Congress Centrum, Hamburg, Federal Republic of Germany. Contact Ro-Ro Secretariat, 2 Station Road, Rickmansworth, Herts WD3 1QP, England; (09237) 76363, telex 924312. (Preview in June 15 issue of MR/EN)

6th Annual Meeting Aug. 18-20 Sponsored by the International Omega Association. Montreal, Canada. Contact IOA at P.O. Box 2324, Arlington, Va. 22202.

Offshore Goteborg Aug. 19-21 International offshore exhibition and conference organized by the National Swedish Board for Technical Development, the Swedish Maritime Research Centre, Lloyd's Register of Shipping, and others. Swedish Trade Fair Foundation exhibition halls, Gothenburg. Contact STFF, Box 5222, S-402 24 Gothenburg, Sweden; 031 20 00 00, telex 20600.

8th Annual Research and Engineering for Automation and Productivity in Shipbuilding (REAPS) Symposium Sept. 15-17 Sponsored by various U.S. shipyards and the Maritime Administration, and conducted by IIT Research Institute. Baltimore Hilton Hotel, Baltimore, Md. Contact Marge Hernandez, REAPS Program Librarian, IITRI, 10 West 35th Street, Chicago, Ill. 60616; (312) 567-4623.

16th Annual Marine Insurance Seminar Sept. 20-22 Sponsored by Houston Mariners Club. Houston Oaks Hotel. Contact Capt. Jack Roberts, 2918 Green Tee Drive, Pearland, Texas 77581; (713) 485-2464.