360 



William C. Schroeder 



loss of fishing time. The towing speed averaged about 2^ knots. Bottom temperatures, 

 recorded by a maximum-minimum thermometer, were obtained in 1953. 



Six cruises were made, as follows: 

 .Cruise No. 1: June 20 to June 27, 1952, from Hudson Canyon to the offing of 

 Nantucket (Long. 72° 05' to Long. 69° 37' W); 50 hauls in depths ranging from 105 

 to 500 fathoms. Mr. James Barker accompanied me. 



Cruise No. 2: July 10 to July 17, 1952, from the offing of Nantucket to the offing of 

 Georges Bank (Long. 69° 37' to Long. 67° 45' W); 35 hauls in depths ranging 

 from 75 to 530 fathoms. Dr. Benjamin Leavitt accompanied me, as well as Dr. P. 

 ScHOLANDER and Dr. L. van Dam who took gas and blood samples of various 

 .species of fish to supplement their data for shoaler water. 



. Cruise No. 3: July 23 to July 30, 1952, from the offing of Georges Bank to the 

 .offing of southeastern Nova Scotia (Long. 66° 55' to Long. 63° 17' W); 32 hauls 

 in depths ranging from 67 to 540 fathoms. Dr. Richard H. Backus assisted me, and 

 Drs. ScHOLANDER and van Dam continued their work on gas and blood samples. 

 . Cruise No. 4: June 25 to July 1, 1953, from the offing of Cape Charles, Virginia 

 .to Hudson Canyon (Long. 74° 15' to Long. 72° 04' W); 45 hauls in depths ranging 

 from 63 to 720 fathoms. Dr. Benjamin Leavitt participated in this cruise, and Drs. 

 ScHOLANDER and VAN Dam continued their gas and blood studies. 

 V Cruise No. 5: July 10 to July 17, 1953, from the offings of Georges Bank to south- 

 eastern Nova Scotia (Long. 65° 27' to Long. 63° 47' W); 31 hauls in depths ranging 

 from 68 to 705 fathoms. Mr. Robert Wolf of U.S. Fish and Wildlife Service assisted 

 me, while Drs. Scholander and van Dam continued their observations. 

 ! Cruise No. 6: July 23 to July 30, 1953, from the offings of Nantucket to Georges 

 Bank (Long. 70° 43' to Long. 66° 39' W); 34 hauls in depths ranging from 70 to 

 .730 fathoms. Mr. Jan Hahn accompanied me and made a photographic record of 

 the trip. 



Table I 

 A list of the total hauls, 32 of them by the Caryn and 227 by the Cap'n Bill U, 



arranged by depths 



Fathoms 



Number of Hauls: 

 Successful 



Number of Hauls: 

 Not Successful 



Total 



193 



66 



