8H0EE AND INLAJH) WATER SHOOTING, 



45 



To construct a sink-box, take an ordinary kitchen chair with back, sit in it and have 

 measurements as follows : — 



12 3 



Front. 



Back. 



Side View. 



The sink-box should be made of light sheet iron and to support it in the water a 

 wooden float must be constructed, with a square hole in the centre to allow the box to fit 

 in : the flanges on the upper end of the box preventing it from going through when loaded. 

 The float should be of light wood, and square and made in two pieces, joined by hinges 

 for convenience in carrying. 



To each side of the float (3 feet wide) is attached a "wing" made of light wood 

 frame-work (l^ feet wide), covered with canvas painted the colour of the water. These 

 wings ride up and down in case of a swell or sea and should prevent any disturbance 

 caused by water " swashing " under the float. The cast-iron decoys are to keep the box in 

 position by loading it down, otherwise it would be impossible to submerge it. 



Appeabance of Box and Float fbom above. 



