EASTERN AREA CRUISE No. 25 Eastern Grid Survey No. 14 28 September - 7 October 1967 Personnel: R. L. DeLong (Biologist-in-charge) Richard D. Chandler John Fitch Itinerary: 28 September 1100 Depart Treasure Island, San Francisco 29 September 0440 Enter Eastern Grid at Pt. Ash 6 October 0830 Depart Eastern Grid at Pt. Oak 7 October 0730 Arrive Long Beach Methods: Observations were made from a light tug during this survey. During periods of moderate, choppy seas which prevailed through most of the survey, observations were taken from the lee wing of the pilot house. On 4 October when seas and winds moderated observations were held from the flying bridge. No nocturnal observations were taken. Bathythermograph casts were made at four hour intervals in the gird area. Two departures were made from the normal grid track. On 2 October 25 miles were cut from the western end of east-west legs 3 and 4. Again on 3 October it became necessary to divert south of the normal track of east-west by 4 to avoid an area in the Pacific Missile Range where there was an apparent firing firing (see Figure ). Acknowledgments: Fine cooperation was received from Captain Frazier and crew members of the boat. A special thanks is extended to R. Cordinier who as a volunteer made the trip to serve as aerographer and to make B-T casts. Also Capt. Frazier is given special thanks as he participated in nearly every B-T cast during the entire trip. The B-T winch was furnished by Naval Electronics Laboratory in San Diego. A special thanks goes to Mr. George Schaffer of that organization who had the winch serviced and delivered to the boat. Vessel Considerations: The light tugs used in the survey worked well, i.e., they completed the grid and the work was done. However due to their size and, more important, their characteristics at sea, the quantitative survey data are not believed "good" (accurately indicative of actual numbers). This