81 



meaning I shall have occasion to dwell 

 more fully upon hereafter*. The earliest, 

 and most perceptible attacks of time, are 

 made on the bark, and on the skin; which 

 at first, however, merely lose their evenness 

 of surface, and perfect clearness of colour; 

 by degrees, the lines grow stronger in each ; 

 the tint more dingy; often unequal and ia 

 spots; and in proportion as either trees, 

 or men advance towards decay, the regu- 

 lar progress of time, and often the ef- 

 fects of accident, occasion great and par- 

 tial changes in their forms. In trees, the 

 various hollows and inequalities which are 

 produced by some parts failing, and others 

 in consequence falling in; from accidental 

 marks and protuberances, and from other 

 circumstances which a long course of years 

 gives rise to, are obvious; and many cor- 

 respondent changes from similar causes ia 

 the human form, are no less obvious. By 

 such changes, that nice symmetry and cor- 

 respondence of parts so essential to beauty, 



* In the Appendix. 

 VOL. I. G 



