The 1977-78 edition of Jane's Fighting Ships maintains the format initiated in the previous edition. In addition, a new section of ship silhouettes and a worldwide pennant list of major surface ships have been added to assist recognition. With complete revision of all data and well over 1,
Perry Oceanographies, Inc., P.O. Box 10297, Riviera Beach, Fla. 33404, under contract to Seaforth Maritime Limited, Aberdeen, Scotland, has started the design and construction of a new concept in undersea observation, maintenance, and repair vehicle.
A complete line of commercial doppler speed logs is now available from Raytheon Marine Company. The doppler speed logs, which are manufactured by Raytheon Company's Submarine Signal Division in Portsmouth, R.I., will be sold and serviced by more