28 2 



YACHT EQUIPMENT 



The reel or sounder can be fixed close to the ship's 



, rail, or if fixed amidships the wire can be led over the 



recording sheave slung from a davit or from a spar, 



Fig. 198. — Lucas Sounding Machine, Hand-driven. (From 

 Krummel's " Handbuch der Ozeanographie," by per- 

 mission of J. Engelhorn's Verlag, Stuttgart.) 



Fig. 199. — Sounding-Leads, with Snapper for Collecting a 

 Bottom Sample. (Lucas Snappers.) 



The lower lead has a weight which is detached on striking the 

 bottom. 



which can be swung inboard when the gear is up, in 

 order to enable the instruments to be conveniently 

 attached and detached. 



Lighting. — If there is a dynamo on board, a " cargo 

 cluster," with enamelled iron shade and flexible con- 



