( M4 8 ) 
I chofe out a long Particle, which lay the length of the 
Wood in an Oblique Pofition, from among fome of 
thofe that were near the Extremity or Supeificies cf the 
Bark, and caufed it to be drawn as you fee Tab i. Fig . i. 
ABODE. 
'At B is reprefented a fmall Crookednefs occafioned by 
the Veffels that proceed from the Wood, an4 by which 
the Bark receives its increafe. 
By C D is reprefented that part upon which another 
of the long Particles lay, and fo made a Dent or Impref- 
fion therein, and the fame alfo happened to the other 
end of it, defcribed by A E, occafioned by another Par- 
ticle that lay under it ^ but I never obferved any thing 
like this in other Barks of Trees that I have examined, 
fave only in that which is called Cinnamon. 
I placed moreover before the Eyes of the Painter fome 
of the Paid long Particles, after I had cut them afunder 
Horizontally, and caufed him to draw a fmall Number 
of them, that you may judge how clofe the faid Parti- 
cles lay by one another in the Bark $ yea, I have feen fix 
of them lie fo near one another, that you could but juft 
diftinguilh the Number of them $ and that which divides 
thefe long Particles from each other, is only the Veffels 
that ccmpofe part of the Bark, and proceed from the 
Wood, as 1 often faid before, and from whence alfo I 
conclude, that the above mentioned Particles receive their 
incerafe. 
Fig. 1 , F G H I, reprefents an exceeding fmall part of 
the abovemenrioned Particles, fo as they are cut acrofs, 
whereby they appear in an Oval Figure ^ aud if we view 
them very nicely we may difcover, that they are cornpo- 
fed of Screw- like Parts, as you may fee in four of them 
between I and H. 
From this Obfervation I fuppofed, that they were not 
at firft made in an inftant'of time, but that they gradual- 
lyjeceive their Increafe. 
I 
