Of making the TtER of ROSES. 13 



repeated for fome fucceflive evenings, or while any of this fine 

 effential oil rifes to the furface of the water. 



JV. B. I HAVE been informed that fome few drops of this ef- 

 fential oil have been more than once coUedled by diftillation, in 

 the fame manner as the effential oils of other plants here in 

 London. I am, 



SIR, 



Your moft obedient humble fervant, 



D. Monro. 



in. 



