II. An Account of the Method of making the OTTER of 

 ROSES, as it is prepared in the Eq/i Indies. Communicated 

 in a Letter from DoNJLD Monro, M. D. of London, to 

 Mr John Rob is ON, Profeffor of Natural Philofophy in the 

 Univerfity ©/'Edinburgh*. 



SIR, London, Jermyn Street, July ic. 1783. 



IHad the following receipt for making the Otter of Rofes, as 

 it is prepared in the Eaft Indies, from Major Mackenzie 

 of Coull, in the county of Rofs, who told me he got the ac- 

 count from an officer of his corps, who was up in the country 

 where it is prepared, and affifked in making it himfelf. 



Take a very large glazed earthen or flone jar, o'r a large 

 clean wooden cade ; fill it with the leaves of the flowers of rofes, 

 very well picked, and freed from all feeds and {talks ; pour on 

 them as much pure fpring water as will cover them, and fet the 

 A r eflel in the fun in the morning at funrife, and let it ftand till 

 the evening, when take it into the houfe for the night ; expofe 

 it in this manner for fix or feven fucceffive days, and, at the 

 end of the third or fourth day, a number of particles, of a 

 fine yellow oily matter, will float on the furface, which, in two 

 or three days more, will gather into a fcum, which is the Otter 

 of Rofes. This is taken up by fome cotton, tied to the end of 

 a piece of flick, and fqueezed with the finger and thumb into 

 a fmall phial, which is immediately well flopped 3 and this is 



% repeated 



* Read in the Philofophical Society of Edinburgh in 1783 ; and publifhed by order 

 of the Committee for publication of the TranfacYions of the Royal Society of Edin- 

 burgh. 



