24A 



and forward, let it be so carried around to the left 

 and backward as to cause compression of the left 

 lower lobe, such that the air passes out through the 

 left nostril. After a certain amount of repetition 

 of these actions the right lower lobe wiU begin to 

 fill from the right nostril. After the right lower 

 lobe has thus filled to a certain extent it will begin 

 to compress the left lower lobe, and to form a co- 

 working with it which may be likened to the work- 

 ing of the head condyles in their ball and socket 

 connection. After this has been carried to a cer- 

 tain extent, a further enlargement of the left upper 

 lobe will take place by transfer of air from the 

 compressed left lower lobe. The left upper lobe 

 wiU join in a sort of co-working with the right 

 upper lobe, which, after compressing the latter and 

 causing the transfer of air to the right lower lobe, 

 will bring on a slight — finally adjusting — filling of 

 the right upper, and conjoin the action of the two 

 upper lobes, so that they may be likened to the 

 sockets of the ball and socket of the head joint. 



§ 187. It may be that the reason for the fact 

 that few persons can take a so satisfactorily full 

 inhalation through the nostrils as through the 

 mouth consists in the necessity for a full move- 

 ment of the lung tips, or, what comes to the same 



