76 



UNIVERSITY OF MISSOURI STUDIES 



Let us see, now, how we must use the table of fluid 

 quantities and partition lengths. We recall that any unit of 



stirrup movement causes the displacement 

 The use of of a unit of fluid. What we have 



the table called above "the relative intensities of the 



tones heard" refers directly to relative 

 numbers of units of stirrup movement ; indirectly also to rela- 

 tive numbers of units of displaced fluid, since it is highly prob- 

 able that the quantity of displaced fluid is approximately pro- 

 portional to the extent of a stirrup movement. What we want 



TABLE OF THE RELATIONS BETWEEN FLUID DISPLACEMENT AND 

 PARTITION LENGTH 



to know now, is the length of the several sections of the par- 

 tition of which — in the last case of tone combination, 4 and 

 9 — the first or initial one moves up and down nine times and 

 produces the tone 9, the second produces no definite tone with 



