EXPERIMENTAL PHONETICS. 



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recorded )»y a device which caused the pressures to act on a third tam- 

 bour, as is shown in the tig-ure. 



10 V. d 



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Fiii. 1!. — Traciiig.s of nasal, laryii.t,'<'al. and lal)ial movements in the pronunciation of various; ]iliones. 



This method was found to givcM'hai'acteristic tracinsfs for the sounds 

 of consonants, but the records obtained from vowel sounds were all 



