113 UNIVERSITY OF MISSOURI STUDIES 



down from 5 to B, and up from B to F. Down from F to J, 

 and up from J to L. Down from L to N, and up from N to 

 T. Down from T to V, and up from V to X. Down from X 

 to 3), and up from 3) to $. The sections from the three hun- 

 dred and seventy-eighth to the five hundred and fifty-fifth 

 move down from A to C, and up from C to I. Down from 

 I to K, and up from K to M. Down from M to S, and up from 

 S to U. Down from U to W, and up from W to Y. Down 

 from Y to S and up from (£ to @=A. The nerve ends of all 

 these sections therefore receive five shocks during the period. 

 The seven sections from the five hundred and fifty-sixth 

 to the five hundred and sixty-second move down from Y to 

 C, and up from C to I. Down from I to 

 The tone 3 K, and up from K to M. Down from M 



to W, and up from W to Y. The nerve 

 ends located on these sections therefore receive three shocks 

 during the period. 



The sections of the partition from the five hundred and 

 sixty-third to the five hundred and seventy-second move down 

 and up twice during the period. Let us 

 The tone 2 here examine only the sections from the 



five hundred and sixty-third to the five 

 hundred and ninety-fifth. They move down from Y to C, and 

 up from C to M. Down from M to W, and up from W to Y. 

 The nerve ends located on these sections therefore receive two 

 shocks during the period. 



The partition sections from the seven hundred and fifty- 

 third to the seven hundred and seventy-third move down from 

 U to K, and up from K to U. The sec- 

 The tone 1 tions from the seven hundred and seventy- 



fourth to the seven hundred and ninety- 

 fourth move down from A to K, and up from K to ©=A. 



