Medical Chemistry. : 91 
The little brother of this child, nine months old and at 
the breast, was immediately relieved from an incipient 
whooping cough by the same means. 
A child of Four and a half years was affected for five 
_months, by a whooping cough, for the cure of which all the 
common remedies and especially the syrup of ipecacuana 
had been applied in vain. Fifteen drops of the prussic acid 
were then administered in the course of three days; this 
remedy was then discontinued for four or five days, on ac- 
count of a febrile excitement which lasted that length of 
time; it was then resumed and the cough disappeared in 
five days more; it sometimes recurred at distant intervals, 
owing to wet —— but bathing caused it finally to dis- 
appear. 
A lady of twenty years of age, of a plethoric habit, but 
enjoying perfect health, and with regular habits in all re- 
spects, (“et la quantité, de sang évacué tous les mois était 
abondante”’) was, without any obvious cause seized with 
acute pains in the stomach, followed by a cough, which oc- 
curred in violent paroxysms but without any appearance 
of whooping cough. Being of a gouty family, and hav- 
ing in her childhood had some gouty affections, she was 
treated accordingly but without benefit; her sufferings, 
and her cough continued, and she lost her bloom and her 
flesh, and was very apprehensive of a consumption. She 
took twelve drops of prussie acid, a day, in solution of gum 
arabic and after a few days the cough diminished ; she then 
took twenty-one drops a day, for some time and was entirely 
relieved from her cough, and recovered very good health. 
- The pains in her stomach are of rare occurrence and not 
severe. 
In summing up this mass of evidence, Dr. Magendie ob- 
serves, that the remarkable accordance, between the obser- 
vations of distinguished men in various countries of Europe, 
appears to be an irresistible proof in favour of this new med- 
icine, and of its perfect innocence, even in large doses, ad- 
ministered with prudence but without unnecessary timidity. 
He remarks, that since the publication of his first me- 
moir, he has been much occupied in the administration of 
the prussic acid, especially in cases of pulmonary phthisis ; 
that he has neglected no epportunity to administer it in the 
first stages of this disease, but that he has given it to many 
