528 



AMERICAN GAME FISHES. 



inch notch. Having planed until you have got these meas- 

 urements, you are ready for the next operation. {Par par- 

 enthese, each joint should be long enough to allow for the 

 cutting off of the bored end.) 



The next process is to convert the square into an octagon. 



To do this you need a length of wood groved out to the 



Fig. 22. 



extent of a right-angle (see fig. 22) in which to lay the joint. 

 It may be of one piece, or two pieces, glued together, the 

 latter is easiest to make. Before placing the square joint, 

 however, it is well to take up the ends and mark with pencil 

 a true octagon, and cut with a sharp knife carefully to the 



Fig. 23. 



marks (see fig. 23). Then plane away, as before. Of 

 course a constant constricting of the gauge is necessary in 

 this as in the preceding process, so that none of the sides 

 are untrue. The next process is, with the small plane to 

 shave off the corners of the octagon, and further lightly 

 shave until a round joint is approximated to. This rounding 

 process can be continued with scraper, glass and fine sand- 

 paper, till it is true and exactly to measurement. 



I mentioned the pieces of old saw-steel in my enumeration 



