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into Derbyshire, has insensibly grown to 

 a bulk which 1 httle expected when I 

 began it : I shall therefore have a few 

 copies printed, for the use of my friends, 

 in defence of an Art, which, I trust, will 

 not be totally suppressed, although you 

 so earnestly recommend every gentleman 

 to become his own landscape gardener. 

 With equal propriety might every gen- 

 tleman become his own architect, or even 

 his own physician: in short, there is no- 

 thing that a man of abilities may not do 

 for himself, if he will dedicate his whole 

 attention to that subject only. But the 

 life of man is not sufficient to excel in all 

 things; and as " a little knowledge is a 

 dangerous thing," so the professors of 

 every art, as well as that of medicine, 

 will often find that the most difficult cases 

 are those, where the patient has begun 

 by quacking himself. 



The general rules of art are to be ac- 

 quired by study; but the manner of ap- 

 plying them can only be learned by prac- 

 tice; yet there are certain good plans, 

 which, like certain good medicines, may 



