No. Title 



553. The trade wind zone oceanography pilot study. Part II: Townsend 

 Cromwell cruises 4, 5, and 6, May to July 1964. By Robert L. 

 Charnell, David W. K. Au, and Gunter R. Seckel. June 1967, 

 v + 78 pp. , 28 figs. , 3 tables. 



554. The trade wind zone oceanography pilot study. Part III: Townsend 

 Cromwell cruises 8, 9, and 10, September to November 1964. By 

 Robert L. Charnell, David W. K. Au, and Gunter R. Seckel. 

 June 1967, v + 78 pp. , 28 figs. , 3 tables. 



555. The trade wind zone oceanography pilot study. Part IV: Townsend 

 Cromwell cruises 11, 12, and 13, December 1964 to February 1965. 

 By Robert L. Charnell, David W. K. Au, and Gunter R. Seckel. 

 June 1967, v + 78 pp. , 28 figs. , 3 tables. 



556. The trade wind zone oceanography pilot study. Part V: Townsend 

 Cromwell cruises 14 and 15, March and April 1965. By Robert L. 

 Charnell, David W. K. Au, and Gunter R. Seckel. June 1967, 

 iv + 54 pp. , 19 figs. , 2 tables. 



557. The trade wind zone oceanography pilot study. Part VI: Townsend 

 Cromwell cruises 16, 17, and 21, May and June 1965 and January 

 1966. By Robert L. Charnell, David W. K. Au, and Gunter R. 

 Seckel. June 1967, iv + 59., 20 figs., 3 tables. 



558. Geographical index to collecting stations of the exploratory fishing 

 vessels Oregon, Silver Bay, Combat, and Pelican, 1950-65. By Frederick H. 

 Berry and Shelby Drummond. October 1967, iii + 25 pp. , 1 fig. , 



5 tables. 



559. Water quality of streams tributary to Lakes Superior and Michigan. 

 By Jerome W. Zimmerman. January 1968, iii + 41 pp. , 2 figs. , 

 11 tables. 



560. Surface-to-bottom pot fishing for pandalid shrimp. By Louis Barr 

 and Roland McBride. December 1967, iii + 7 pp. , 6 figs. 



561. Diel and seasonal occurrence of pink shrimp, Penaeus duorarum Burken- 

 road, in two divergent habitats of Tampa Bay, Florida. By Carl H. 

 Saloman. January 1968, iii + 6 pp. , 4 figs. , 6 tables. 



562. Seasonal and areal distribution of zooplankton in coastal waters of 

 the Gulf of Maine, 1965 and 1966. By Kenneth Sherman. March 

 1968, iii + 11 pp. , 6 figs. , 6 tables. 



563. Bibliography of oyster parasites and diseases. By Carl J. 

 Sindermann. April 1968, i + 13 pp. 



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