306 K W. Scripture — Nature of Towels. 



ently only one very strong vibration in a group, this probably 

 occurs because the lower portion of the second one is cut off 

 by interference with another partial tone. In amplitude the 

 vowel slowly increases and then decreases. 



The cord tone starting with a period of 0*0072 s (139, fre- 

 quency) remains at this pitch for a time and then falls to 

 0'0080 s in period (125, frequency.) A lower resonance tone 

 with a period of 00026 s (385, frequency) is apparently present. 



The last part of the line shows the vibrations for i, resem- 

 bling those for i in ai of I and my. There is no h in the 

 spoken sounds or in the record. The m is just begun where 

 the record is cut off. The grouping in the * is in threes. The 

 cord tone of i starts with a period of 0'0083 s (121, frequency) 

 and steadily rises to one of 0*0072 s (139, frequency) in the m. 

 The lower resonance tone has a period of about 0*0025 s (400, 

 frequency). 



The curve for the a of caught exhibits a decided difference 

 from that for the a of saw, although both vowels are generally 

 supposed to be the same. The a of caught shows a quick and 

 strong increase in amplitude followed by a rather sudden 

 decrease. Its pitch is approximately constant. The initial 

 strong vibration of a group is followed by very much weaker 

 vibrations ; the vocal action resembles that in a rather than in 

 the a of saw. Yet in the last few groups there is a marked 

 change to a form indicating a condition between that of & in 

 saw and that of i. 



The cord tone rises from a period of 0*00 74 s (135, frequency) 

 to one of 0*0064 s (156, frequency) but falls again in the last 

 few periods. The lower resonance tone seems to have a period 

 of about 0*0024 s (417, frequency).' Other tones of higher 

 pitch are present. 



In the e in said the vocal action is seen to differ essentially 

 from that in a or a and to resemble somewhat closely that of i. 

 There is much less indication of the explosive character of the 

 cords. There are three resonance vibrations to each group. 

 The pitch of the cord tone is nearly constant at 0*0072 s period 

 (139, frequency) ; the lower resonance tone has a period of 

 0-0024* (417, frequency). There are minor fluctuations in the 

 curve that indicate higher resonance tones. The amplitude 

 increases steadily until the vowel is ended rather abruptly by 

 the change to d. 



The preceding account gives in general the pitch of only the 

 lowest resonance tone in each vowel. A determination for the 

 higher tones would require more elaborate methods. It is 

 probable that the higher tones are quite as important for the 

 vowel characters as the lowest ones. The disagreement in the 

 accounts of various investigators in regard to the tones found 



