PLATE 23 



Fig. 3. Front view of net after closure. The second messenger rests 

 upon the outer trip which released the upper jaw and allowed it to fall 

 down against the lower one, thus closing the net. The thumb-nuts to the 

 doors of the chambers containing the hubs have been released and the 

 doors dropped down, exposing the hubs. The clutches of the trips pro- 

 ject downward from the upper arc of the frame. 



Fig. 4. Side view of net opened for towing. Note the set screw at 

 rear of horizontal axis for holding spring in tension, and double acting 

 accumulator springs at the rear of the head of the frame. 



[344] 



