 | William Nicholson - 1808 - 900 ページ
...continual stream of air fur many minutes il necessary, without ceasing. This is done by applying the tongue to the roof of the mouth, so as to interrupt the communication between :he mouth and the passage of the nostrils; by which means ihe operator is at liberty to brc:uhc through... | |
 | James Smith - 1815 - 942 ページ
...breathing through the nose, while the blow-pipe is supplied by the breath in the mouth. To do this, the tongue must be applied to the roof of the mouth, so as to cut off the communication of the mouth with the passage to the nostrils during the time of breathing.... | |
 | Andrew Ure - 1821 - 512 ページ
...stream of air for >niny minutes, if necessary, without ceasing. I lin a done by applying the tongue to the roof of the mouth, so as to interrupt the communication between the mouth and the passage of the nostrils; by which means the operator is at liberty to breathe through... | |
 | Andrew Ure - 1821 - 418 ページ
...for many minutes, if necessary, without ceasing. This is done by applying the tongue to the Vob. II. roof of the mouth, so as to interrupt the communication between the mouth and the passage of the nostrils ; by which means the operator is at liberty to breathe through... | |
 | John Joseph Griffin - 1827 - 386 ページ
...continues breathing without interruption through the nostrils. This is done by applying the tongue to the roof of the mouth, so as to interrupt the communication between the anterior part of the mouth and the passage of the nostrils. When the mouth begins to be empty, it is... | |
 | Thomas Curtis - 1829 - 832 ページ
...stream of air for many minutes, if necessary, without ceasing. This is done by applying the tongue to the roof of the mouth, so as to interrupt the communication between the mouth and the passage of the nostrils ; by which means the operator is at liberty to breathe through... | |
 | Thomas Curtis (of Grove house sch, Islington) - 414 ページ
...of air for many minutes, if necessary, without ceasing. This is done by applying the tongue to tin., roof of the mouth, so as to interrupt the communication between the mouth and the passage of the nostrils ; by which means the operator is at liberty to breathe through... | |
 | Robert Best Ede - 1837 - 276 ページ
...continues breathing without interruption through the nostrils. This is done by applying the tongue to the roof of the mouth, so as to interrupt the communication between the anterior part of the mouth and the passage of the nostrils. When the mouth begins to be •Oriflln's... | |
 | John Joseph Griffin - 1838 - 364 ページ
...stream of air for many minutes, if necessary, without ceasing. This is done by applying the tongue to the roof of the mouth, so as to interrupt the communication between the mouth and the passage of the nostrils ; by which means the operator is at liberty to breathe through... | |
 | Arnold James Cooley - 1845 - 878 ページ
...stream of air for many minutes, if necessary, without ceasing. This is done by applying the tongue to the roof of the mouth, so as to interrupt the communication between the mouth and the passage of the nostrils ; by which means the operator is at liberty to breathe through... | |
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The operation depends upon a little artifice in blowing through the pipe, which is in reality more difficult to describe than to acquire. " The effect intended to be produced is a continual stream of air for many minutes, if necessary, without ceasing.... 
