^xir PREFACE.' 



propagation by feeds without male and 

 female organs of generation. The whole 

 to be confidered is wdiether thofe parts 

 which are called, and, i believe truly 

 called fo, do really exift, and whether they 

 they for the moft part cxift fo uniformly, 

 as to furnith marks fufficient to diftinguiih 

 the clafTes, &c. by. Nor does it matter 

 whether it be hard to diftinguifli thofe 

 marks, but v/hether they can with proper 

 care and patience be diftinguifhed, and 

 whether we can furely diftinguifli plants, 

 without obferving thofe nice and minute 

 parts, and whether a fyftem has been 

 found equally fure with the Linnsan 

 without having regard to thofe parts. 

 Thofe who think fo would do well to in-. 

 form the world of their difcovery, and not 

 make objecftions that affedl only the ob-. 

 fcurlty of nature, when they mean to con- 

 dem.n a fyftem which is obfcure mere- 

 ly from its ccnfonancy to nature. If 

 Providence has thoiight fit to write in 

 cyphers, ftiall he be blamed who endea- 

 vors to o;ive a kcvrto its works, becaofe 



feme 



