INTRODUCTION 

 In conformity with our later practice (see Station Lists, vols, xxi, xxii and xxiv) the force of the wind 

 is given as the velocity in knots. The state of the sea is expressed as a number in the Douglas Sea Scale, 

 which is as follows: 



STATE OF SEA 



The following symbols are used to denote the state of the weather : 



b blue sky whether with clear or hazy atmosphere, or sky not more than one-quarter clouded. 



be sky between one-quarter and three-quarters clouded. 



c mainly cloudy (not less than three-quarters covered). 



d drizzle or fine rain. 



e wet air without rain falling. 



f fog. 



fe wet fog. 



h hail. 



m mist. 



o overcast sky (i.e. the whole sky covered with unbroken cloud). 



p passing showers. 



q squalls. 



r rain. 



rs sleet (i.e. rain and snow together). 



s snow. 



V unusual visibility. 



Time is expressed in the 24-hour system ending with midnight (0000). The difference of ship's 

 time from Greenwich mean time (GMT) is noted in the 'Remarks' column, this difference holding 

 good until another entry is made. Times in heavy type refer to biological observations made between 

 sunset and sunrise. 



The following symbols are used for nets, apparatus, etc. : 



BNR Russiyrs bottom tow-net. A i m. stramin net (N 100) on a rectangular frame attached to skids which raise 



it clear of the bottom. , • / 



BTS Small beam trawl. Beam 8 ft. (2-45 m.) in length: mesh at cod-end h m. (1-25 cm.). 



DC Conical dredge. Mouth 16 in. (40-5 cm.) in diameter, with canvas bag. 



H Horizontal. 



KT Kelvin sounding tube. 



LB Leather bucket. 



LH Hand lines. 



^ '^"JX Nets of 4. mm. (o-i6 in.) or 7 mm. (0-28 in.) mesh attached to the back of trawl. 

 N 7— T) T \ II 



NCS-T Tow-net of coarse silk (16 meshes to the linear inch) attached to back of trawl. 



N-T Net (mesh not specified) attached to back of trawl. . 



N =;o so cm. silk tow-net. Mouth circular, 50 cm. (19-5 in.) diameter: 200 meshes to the hnear inch 



N70 70 cm. tow-net. Mouth circular, 70 cm. (27-5 in.) diameter: mesh graded, at cod-end ot silk with 74 

 meshes to the linear inch. 



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