ROD TAPERS AND ROD PLOTTING 99 



handgrasp, in a 9-foot rod weighing 3% ounces; 

 31% inches, in a 9/^foot rod weighing 4 ounces; 

 34% inches, in a lo-foot rod weighing 5 ounces. 

 Rods from the other maker showed: 31% inches, in 

 a 9%-foot rod weighing 4% ounces ; and 34% inches, 

 in a i o- foot rod weighing 5% ounces. The in- 

 creased weight of the handgrasp in a detachable- 

 handle rod because of the extra ferrule would 

 bring the balancing-point or center of gravity nearer 

 to the butt end. 



In the endeavor to copy in a duplicate the exact 

 action of any particular rod, these balancing-points 

 should coincide; so, too, should the extent of the 

 vertical deflection from the horizontal of the respec- 

 tive tips, under the influence of a definite weight at- 

 tached say of one or two ounces when the 

 butts of the jointed-up rods are held securely; and 

 further, so should the rate of the vibrations of the 

 rods be the same when, still held as above, they are 

 set to working. Says Mr. Ralph L. Montagu of 

 Oroville, Calif.: "In order to make this test, the 

 handle of the fully-jointed rod should be held in a 

 vise " or blocked up on the end of a table and 

 " firmly held by an assistant. Now, by pressing 

 down on the rod near the handle, get it vibrating up 

 and down; as soon as the vibrations become reg- 

 ular, get out your watch and count the number per 

 minute, using a finger to touch the rod lightly each 

 time it comes up, and thus continuing its full swing." 



