643 



RECORD OF DREDGING, 



TEMPERATURE AND DENSITY. 



Station No. 

 Date, pcA. u 

 Time of day. / 

 Locality. 

 Exact position. 



Depth. 

 Nature of bottom, 



of tide. 



Dredging instrument used, 

 Direction of drift, 

 Temperature of air, / y 



" of surface water. 



" at depth of fathoms. 



" at hottoru, 



Density at surface. / j 2. ^ y 

 " at depth of fathoms, 

 " at bottom, / , 

 Number of clinometer, 

 Barometer reading, 4+ L 

 State of sky, 

 Direction of wind, - . 

 Rain. 



Direction of surface current. 



" of bottom " 

 Name of vessel, 

 Service to which, attached. 

 Name and rank of commanding officer. 



; distance, 



therm. No.. 



temp.. 



force. 



; force, 

 ; force, 



Name and position of observer 



