154 



THE STUDY OF SPEECH CURVES. 



This multiplied by < = 0.79 gives 0.0165. 

 to, tw, t2v, . ■ . k:, namely, 0, 0.79, 

 by multiplying 0.79 by 0, 1, 2, .. . 



Fig. 135. — Curve of figure 130 with friction eliminated. 



Since the successive values of 

 1.58, . . . 27.65, are derived 

 35, we obtain the first column 

 of the table by multiplying 0.0165 

 by these numbers. The numeri 

 (from a table of logarithms) for 

 this column give the values of 

 e" in the next one. The column 



contains the original 36 ordi- 



y 



nates. The last column is the 

 product of the two preceding ones. 

 This last column, when plotted, 



gives the curve of figure 130 with the friction eliminated (figure 135). 



Thirtt-six Obdinates op Figure 130, Multiplied by the Factor of Friction and the 



Cosines. 



