114 TRIANDRIA DIGYNIA. 
the winter, rapid in the growth of its foliage, 
and not averfe to any foil. Notwithftanding all 
thefe good qualities, I have often heard» it 
fpoken lightly of. However, many gentlemen 
and farmers are not aware that this grafs in 
its feed fhould be changed once in every four 
years at leaft; as is commonly the cafe through- 
out this ifland with potatoes and oats. This I 
have experienced in the Botanic gardens; for I 
have remarked whenever I brought in a variety 
of this grafs from any diftance, fuch as eight 
or ten miles, it throve better than any.I had 
coiuleéted in or about the ground. 
From what I had heard at Leéture, I con- 
fider Mr. Pacey’s Ray-grafs (for which he has 
fo confiderable demand) to be an improved 
variety of the Lolium perenne. ‘This improve- 
ment I take to be owing to nothing elfe than 
the ange of foil; for, as I have remarked, 
it will degenerate, as potatoes and corn do, 
if there be not a change either in feed or 
foil. 
About thirty years ago I recollc& that whole 
fields of this grafs were cultivated at Rathef- 
car, a country feat belonging at that time to 
the Rt. Hon. John Fofter, and- was -efteemed 
by 
