Mrorocrar Hbady 144 
refiding within them might be difloly'diand mix'd with the ambient juices 
of that place, and thereby thofe fibres|and tender :parts adjoyning be» 
come affected, and asitiwere corroded by, it; whence, whilé that acti- 
ontafts, the pains created are pretty {harp and!pungent, though fmall,, 
which isthe effential, property. of anitehing.one; | >... 
: That the pain alfoicaufed. by the ftinging of d Fled, aG ina fae 
Wafp, and the like, proceeds much feamiahiahelslemmecatles tetera 
intheir proper placesendeavour to, manifeft. The {tinging alo of thred’ 
Horf-hairs which in meriment is often {trew’d between the fheets ofa Bed," 
feems to proceed fromthe fame caufes) of) os mai sn eh ee 
z wi =, » te * > 
~ . rl fr ree 
Obferv. XX VII. Of the Beard:ofa wilde Oat, and the ufe that 
‘. may be made of it for exhibiting always to the Eye the temperature . 
«of the Air, as todrine/s and moiflures. 00 he 
“y Bis Beard:of a wild Oat, isa bodyofa very curiousftrudture,though 
‘™ to the naked Eyeit appears very: flight, and.inconfiderable, it being 
only ‘afmall black or brown Beard or Briftle,which grows out ofthe fide 
of the inner Husk that coversthe Grain of a wild Oat;the wholelength of 
it,;when put in Water, fo that it may extend it {elf to its full length,isnot: 
above an Inch and 2 halfjandfor the moft part fomewhat fhorter,but- when 
the Graimis ripe, and very dvy, which is ufualy ‘in the Moniciwetiiaiis| 
and Augnf, this Beard is bent fomewhat below the middle, namely,about 
? from the bottom of it, ‘almoft to aright Angle, ‘and the under part of 
itis wreath’d lik a With the fubftance of it is vety brittle when dry, and: 
itwillvery eafily be broken from the husk on whichit grows: : 
© Ifyou tuke one of thefe Grains; and wet the Beard in Water,you will 
pele? fee the {mall bended topto turn and move round, asif it were 
lenfible; and by degrees, if it be coritinued wet enough, the joint or knee 
will ftreighten it felf; and if it be fuffer'd to dry again; it willby degrees 
move round another way, and at Jength bend:again into! 1s former 
© fit be view’d with an ordinary fingle Aécrofcope, it will appear like 
a fmall wreath’d Sprig, with two clefts; and if'wet as betore, and, 
then look'd on with this Asicrofcope, it will appear to unwreath it felf; 
+ ste bape {treighten its knee, and the two clefts will/ become 
reight, and almoft on oppofite fides of the finall cylindrical body. 
~_ If it be continued to is look’d a little longer witha AGcrofcope, it 
will within a little while begin to wreath it felf again, and foon after 
return toits former poftute, bending it felf again neer the middle, into 
a kind of knee or angle. Ot 3 1Wotee > 
_ Several of thofe bodies exatnin'd with larger Aéicrofcopety:and there 
found them much of the make ofthofe two long wreath cylinders de- 
ligeated in the fecond Figure of the 15. Scheme, whichtwo cylinders a 
By Ko pre 
