074 MODUS OPERANDI OF 



when injected into the veins of a dog, caused 

 difficulty of breathing, followed by death the 

 next morning, when his blood was found in a 

 dissolved state, as when mixed with the same 

 poison out of the body. But a larger quantity is 

 required to produce the same effects when taken 

 into the stomach, because it is then more gradu- 

 ally diffused throughout the mass of the blood, 

 and thus diluted. When half an ounce is swal- 

 lowed, respiration is greatly diminished, the sur- 

 face becomes cold and clammy, the pulse feeble 

 or imperceptible, the countenance pale or livid, 

 attended with nausea, vomiting, convulsions, and 

 death in a few hours, when the stomach is found 

 in a state of inflammation. 



Tartar emetic produces vomiting, purging, 

 great debility, head-ache, and often cramps, whe- 

 ther taken into the stomach, or applied to a fresh 

 wound. Magendie found that when from six to 

 ten grains of it were introduced into the stomach 

 of dogs, and the gullet tied, they died in from 

 two to three hours : that when a solution of it 

 was injected into the veins of a dog, it produced 

 nausea after the stomach was removed, difficulty 

 of breathing, cough, symptoms of pneumonia, 

 fever, and death. He further states, that he has 

 not found the exhibition of this medicine, in the 

 treatment of pneumonia and rheumatism, to cor- 

 respond with the accounts of Laennec : and that 

 when mixed with very small proportions of blood, 



