AND ANIMAL LIFE, 307 



acts upon the function of respiration, or from the 

 regular course of the circulation being disturbed. 

 The established succession of inspiration and ex- 

 piration is disordered when the mind is directly 

 or indirectly concerned in the production of 

 syncope, and it will be seen by subsequent illus- 

 trations, that a quantity of blood greater than 

 what is natural is drawn to the chest by the 

 sensations which accompany nausea. 



CCCXLIII. After having reflected for some 

 time on the principles which have given rise to 

 the present work, it was gratifying to discover, 

 that the late distinguished philosopher, Dr WOL- 

 LASTON, had also remarked a material change in 

 the order of his respirations during the feeling of 

 sea-sickness. Although our ideas concerning the 

 operation of this change by no means coincide, 

 yet it is corroborative to bring forward the views 

 of so able an observer in support of the tendency 

 which the respiratory functions have to promote the 

 sensations of nausea. The opinions of this phi- 

 losopher being, on all occasions, valuable, I shall 

 transcribe them. " I had the good fortune to 

 observe a peculiarity in my mode of respiration, 

 evidently connected with the motion of the ves- 

 sel, but of which, in my then enfeebled state, I 

 was unable to investigate either the cause or 

 consequence. In waking from a state of dis- 

 turbed sleep, I found that my respirations were 

 not taken with the accustomed uniformity, but 

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