116 ODOROGRAPHIA. 
be afterwards noticed, but before quitting the subject of Violet 
and the curious ways in which this odour is formed by Nature, 
mention may be made of a fact which was known to the Romans, 
viz. that when oil of turpentine is taken inwardly, it imparts the 
odour of violets to the urine, and the same effect is produced 
when the human body is exposed to its vapours for a considerable 
time. 
