The following symbols (employed previously) are those used for nets, apparatus, etc. : 



B Oblique. 



DC Conical dredge. Mouth i6 in. in diameter (40-5 cm.), with canvas bag. 



DLH Large dredge. Heavy pattern, 4 ft. in length (1-2 m.). 



H Horizontal. 



KT Kelvin tube. 



?^ ■* I Nets with mesh of 4 mm. or 7 mm. (o-i6 in. or 0-28 in.) attached to back of trawl. 



N 7-TJ 



N 50 50 cm. tow-net. Mouth circular, 50 cm. in diameter (19-5 in.): 200 meshes to the linear 



inch. 

 N 70 70 cm. tow-net. Mouth circular, 70 cm. in diameter (27-5 in.): mesh graded, at cod-end 



74 to the linear inch. 

 N 100 I m. tow-net. Mouth circular, i m. in diameter (3-3 ft.) : mesh graded, cod-end of stramin 



with 11-12 meshes to the linear inch. 

 NCS-T Tow-net of coarse silk, with 16 meshes to the linear inch, attached to dredge, trawl, or 



other net. 

 OTC Commercial otter trawl. Head rope 80 ft. long (24-5 m.) : mesh at cod-end ij in. (3-8 cm.). 

 V Vertical. 



To the symbols for the tow-nets (N 100, N 70, N 50) B, H or V is always added to 

 indicate the direction in which the haul was taken. 



For determining the depths from which oblique nets were hauled, Kelvin tubes were 

 constantly employed. The symbol KT in the "Remarks " column indicates their use and 

 where it does not occur it is to be understood that the depth was estimated. 



Times are expressed on the 24-hour system, the day ending with midnight (0000). 

 The entry under "from" states the time when all the warp was paid out. That under 

 "to" either gives the time when hauling began, or, with oblique nets, the time when 

 the nets reached the surface. When series of vertical nets were taken only the times 

 for the beginning and end of the series are given. The times given are " ship's time ", 

 corresponding nearly with local mean time. In order to distinguish hauls which were 

 made when it was dark, those times which fall between sunset and sunrise are printed 

 in heavy type. 



At the end of the lists (p. 132) will be found a summary of the stations made by the 

 'William Scoresby' with references to the charts on which the positions are marked. 



