[ 20J } 



from fome obfervations, is the meridian of their 

 perfedbion. In thefe mule plants, produced with- 

 out doubt from the farina of the Palmatum and 

 Compadum intermixing with each other in 177 1, 

 the root does not appear to have been at all affcded 

 cither in reality or appearance, having accurately 

 compared it with that of the genuine Rheum Pal- 

 matum. I tried thefe roots both frefti and dried 

 with the fhop Rhubarb, by an experiment of another 

 kind. I infufed them in a portion of water, and to 

 the infufion, when {trained, I added a few grains of 

 fait of tartar, whereby I obtained a very beautiful 

 red tindlure, fuch as would be valuable for the pur- 

 pofes of dying a colour which at this time is fo very 

 expenfive, and which, by this means, may probably 

 be amply provided for by the ufe of this root when 

 it is more generally cultivated, as with very little 

 trouble and expence it may be. The foil in which 

 my plants were raifed is very light for about twelve 

 inches deep, under which there lies a ftratum of red 

 fand of great depth." 'Thus far the Do6tor. 



I am, Gentlemen, your's, &c. 



m 



ARTICttS 



