1*JZ On the Anatomy of Vegetables. 



But in a recent publication, the following table is given ay 

 the refult of a more extenfive collection of in ft aft ces of lon- 

 gevity. 



Of males and females who lived from looto no years, 



both inclutive, the inltanccs have been - *3 10 



Above no to 120 - 277 



120 to 130 - 84 



. . .130 to 140 - - - 26 



140 to 150 -' - - 7 



150 to 160 - 3 



160 to 170 - - - 2 



37010185 ... 3 



1712* 

 Co?icluJion. 



Such is the fubftanee of the obfervations which have oc- 

 curred to me on this interefling fubjecl:. I (hail conclude 

 with remarking, that on the whole it is more than probable, 

 by proper attention and good management, perfons in gene- 

 ral might not only live longer, but might enjoy life with more 

 relifh, than is commonly the cafe at prefent; and it is to be 

 hoped, in refpecl: of this, as well as of many other particu- 

 lars, that human nature is full in the threfhold of acquire- 

 ment, that it will yet obtain greater and more important ac- 

 quisitions of knowledge,, and may reach further improvement 

 both with regard to the extent of perfonal and mental grati- 

 fications, which our fpecies may be found capable of enjoy- 

 ing, and alfo the means of pofleding them, with more latif- 

 fadtion and comfort, and for a much longer period of time* 



[To be continued.] 



XXIX. Memoir on the Anatomy of Vegetables. Bead before 



the Phyjicat Clafs of the Injiitute ^ C. Mirbel. 



[Continued from p. 40 ] 



Ch^p. IV. 



_^ Of the tubular Ttfjiie. 



JL HERE are two kinds of tubes, the great and the fmall. 



Art. I. Of the large tubes. — The large tubes during the 



firft period of their formation are not, as might be fuppofed, 



membranaceous canals fepafate and diftincl from the tiiTuej; 



* See Eafton on Longevity, printed an. 1799. 



and 



