RECORDS OF THE DREDGING AND OTHER COLLECTING 



STATIONS OF THE U. S. FISH COMMISSION STEAMER 



ALBATROSS IN 1901 AND 1902. 



In 1902 the dredging, trawling, and other collecting operations of 

 the Alhafnhss were all embraced within the limits of a cruise to the 

 Hawaiian Islands in pursuance of investigations concerning the fishes 

 and fisheries of that archipelago. In 1901 but four stations were occu- 

 pied, all on the west coast of the United States. 



In the following records all stations where apparatus was employed 

 for the purpose of collecting natural-history specimens are given 

 dredging numbers in chronological order, and each piece of apparatus 

 used at each station is given a separate line. 



The time of a sounding is the time when the plummet strikes the 

 bottom by the ship's local time. 



The time of a net or dredge haul is the hour when such apparatus 

 is in place or position and the actual towing or dredging commenced. 



In the case of open intermediate nets the time occupied in hoisting 

 to the surface is also noted. 



Where two surface nets were used the actual time that both nets 

 were in the water together is given as if but one piece of gear were 

 employed. 



The remarks show how many single hauls of a surface net were 

 made at each station. 



Almost invariabl}^ the dredging stations were located by soundings 

 at each end of the line, and a majority of the dredgings were on lines 

 of continuous development. 



The drift is the direction and distance traveled over the ground in 

 the case of bottom gear, and through the water — after getting in posi- 

 tion — in the case of other nets. No account is taken of the distance 

 traveled by the ship while nets are being lowered or hoisted. 



"Tanner with brace" is an ordinary" Tanner beam-trawl frame with 

 a T bar joining the upper sides of the runners near the heels, thus 

 increasing the rigidity of the whole frame. This modification was 

 suggCvSted by Mr. A. B. Alexander. 



The "Albatross-Blake beam-trawl frame" embraces a number of 

 improvements on the old Blake frame, suggested by Commander 

 Chauncey Thomas, U. S. Navy, and Mr. H. C. Fassett, U. S. Fish 

 Commission. 399 



