No. Title 



492. Releases and recoveries of drift bottles and cards in the central 

 Pacific. By Richard A. Barkley, Bernard M. Ito, and Robert P. 

 Brown. September 1964, iii + 31 pp., 10 figs., 2 tables. 



493. Salmon escapements above Rock Island Dam, 1954-60. By 

 Robert R. French and Roy J. Wahle. March 1965, iii + 18 pp., 

 8 figs. , 9 tables. 



494. Stream catalog of the Wood River lake system, Bristol Bay, Alaska. 

 Compiled by Richard A. Marriott, with additions and revisions by 

 Nevin Aspinwall, Ted S. Y. Koo, and Robert L. Burgner. October 

 1964, ix + 210 pp. , 5 figs. 



495. Age and size composition of the menhaden catch along the Atlantic 

 Coast of the United States, 1961, with a brief review of the commer- 

 cial fishery. By William R. Nicholson and Joseph R. Higham, Jr. 

 April 1965, iv + 28 pp., 6 figs., 23 tables. 



496. History of oceanography in the offshore waters of the Gulf of Maine. 

 By John B. Colton, Jr. December 1964, ii + 18 pp. , 1 fig. , 



1 table. 



497. Fur seal investigations, Pribilof Islands, Alaska, 1963. By 

 Alton Y. Roppel, Ancel M. Johnson, and Douglas G. Chapman. 

 January 1965, v + 60 pp. , 7 figs. , 63 tables. 



498. Observations of cetaceans off California, Oregon, and Washington. 

 By Clifford H. Fiscus and Karl Niggol. January 1965, iii + 



27 pp., 12 figs. , 16 tables. 



499. A study of ocean fronts off Cape San Lucas, Lower California. 

 By Raymond C. Griffiths. February 1965, vi + 54 pp. , 37 figs. , 

 6 tables. 



500. Annual fish passage report - Rock Island Dam, Columbia River, 

 Washington, 1963. By Paul D. Zimmer and John H. Broughton. 

 March 1965, iii + 23 pp., 3 figs., 21 tables. 



501. The fishery for blue crabs in the St. Johns River, Florida, with 

 special reference to fluctuation in yield between 1961 and 1962. 

 By Marlin E. Tagatz. February 1965, iii + 11 pp. , 9 figs. , 



2 tables. 



502. Fur seal investigations, Pribilof Islands, Alaska, 1964. By 

 Alton Y. Roppel, Ancel M. Johnson, Raymond E. Anas, and 

 Douglas G. Chapman. January 1965, v + 46 pp. , 3 figs. , 46 

 tables. 



503. Automatic data processing program for marine synoptic radioweather 

 reports. By James H. Johnson, Glenn A. Flittner, and Marvin W. 

 Cline. February 1965, iv + 74 pp. , 37 figs. , 2 tables. 



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