310 On Pneumatic Medicine. 



old, under my own care. This little girl, having caught the 

 typhus fever of her mother, is now in a state of convalescence 

 in consequence of the administration of yeast, by which, in 

 less than the usual period, the fever has been entirely over- 

 come. 



I shall be happy if this communication prove any way 

 interesting to the philosophic world. And remain. 



Dear sir, 

 Your most obedient servant, 



Arnold's Place, J. C. Du MoULIN. 



Newington Butts, 

 July 18, 1807. 



Dr. Thornton. 



Olservations on these Cases hj Dr. Thornton^ 



1. Latelv, a relation of Mr. Sutherland, the engraver, who 

 was at the point of death in tvphus fever, experienced a very 

 imexpected change, from my ordering the administration of 

 yeast. 



2. In addition, in this case, T ordered water impregnated 

 with Jixed air, which was given with some port wine, and 

 proved very efficacious. 



3. The yeast being from the baker's, the bitter principle 

 is much washed out by means of water; and I usually order 

 a table-spoonful every three hours, and vegetable food in the 

 interval, with porter. 



4. The bowels must be kept open with a few grains of 

 calomel at first, and afterwards each evening, unless re- 

 lieved in the course of the day. 



5. Bark and serpentaria, a scruple of the former to half 

 a scruple of the latter, may be usefully added to the yeast; 

 but I have been equally successful in numberless cases with- 

 out any such addition. 



6. The rationale of the operation of yeast from the fixed 

 air it contains, has been before explained. 



XLV. On 



