C 447 3 



lindrlcal piece of the fame fatnple, much higher coloured. 

 3d, The cylindrical piece of No. I. 4th, Eaft-Indian. 

 5th, The flat piece of No. I. 6th, Turkey, the deepell 

 yellow of any. 



The rhubarb tafle and aftringency of the famples feemed 

 proportioned to the colour. The flat piece of No. II. cut 

 very pale; and in powder was not yellower than the pow- 

 der of the flat piece of No. I. when ground with double its 

 weight of ftarch. Infufed cold, it gave very little colour 

 to water, but to proof fpirit a colour equfl to that of the 

 flat piece of No. I. At the fame time the cylindrical piece 

 of the fame fample No. II. gave both to water and proof 

 fpirit a higher tinfture. than even the flat piece of No. I 

 or either of the foreign riiubarbs. I am not qualified to 

 fpeak of the comparative ftrength of the medical powers 

 of Englifh and of foreign rhubarb: Nor do I know of any 

 quality in the Englifli that is inimical to health. 



From the examination I, have made of this rhubarb, I 

 have no reafon to apprehend any bad effea from its ufe: 

 But my experience is not fuflicient to warrant me to think 

 it right to adminifter it in the general courfe of my prac- 

 tice. In all delicate cafes, experiments ought to be made 

 with the greateft caution, and even jealoufy. 



R. C. SIMS. 

 DuNMOW, lyh of the %th Months 1784. 









