Stuttering and lisping . Fig. 42. — Candle flame indicator used for the mouth. According as air issues or does not issue from the mouth, the candleflame bends or stands upright. to illustrate the properties of many sounds. Thetube from the mouth is directed against a candleflame. When the vowels are spoken into the mouth- 120 STUTTERING AND LISPING. Fig. 43. — Tambour indicator used for the nose. The indicator is made from a thistle funnel covered with piece of card hangs in front of the rubber and is fastened to it byglue or wax. Air issuing from the nose moves the card flap. Amouthp
Stuttering and lisping . Fig. 42. — Candle flame indicator used for the mouth. According as air issues or does not issue from the mouth, the candleflame bends or stands upright. to illustrate the properties of many sounds. Thetube from the mouth is directed against a candleflame. When the vowels are spoken into the mouth- 120 STUTTERING AND LISPING. Fig. 43. — Tambour indicator used for the nose. The indicator is made from a thistle funnel covered with piece of card hangs in front of the rubber and is fastened to it byglue or wax. Air issuing from the nose moves the card flap. Amouthpiece may be used, as in Fi<i. 42. piece, the flame is deflected. The same is true of thefricatives. During the occlusives the flame is up-right, but it is sharply deflected by the explosionsat the ends of the occlusions. INTRODUCTION 121 The breath indicator shown in Fig. 43 consists ofa thistle funnel over the top of which thin rubberis stretched and tied. A strip of visiting card is cutacross and joined with tissue paper to make a piece of wax holds one piece of the card to the fun-nel, while the other one hangs in front of the rubbermembrane. A drop of paste connects the hangingflap to the membrane. The funnel is connected bya rubber tube to a nasal tip. When any air issuesfrom the nose, it goes into the funnel and moves ther
Size: 1505px × 1661px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectspeech, bookyear1912
