120 Rev, Mr, KigBY's Olfervations upon certain Fungi 
bury's experiments it appears, that the fimple wafhing of the fecd 
with water, if it be carefully wiped, anfwers all the end of fleeping 
in a more expenfive preparation. This perhaps could not be done 
with fufficient care and accuracy upon a large fcale, otherwife the 
-moft fimple and leaft expenfive method is certainly the beft, and all 
that feems to be wanted previous to fowing is thoroughly to cleanfe 
the feed from the Brand duft that adheres to it. Probably wetting 
the feed with water, and afterwards drying it with freth flaked lime, 
Miguld an Ger CVA T T ses cencQe Gn ro aicbeaatcos t 
The fappofition that the Brand is produced by infects is not fup- - 
ported by one fact or experiment that I have ever heard of: indeed, 
the fingle circumftance that the diforder originates with the feed, 
and from thence paffes by fome unknown channel into the plant, - 
entirely overturns it. I íhall not therefore lofe time by dwelling 
upon it, but proceed further to eftablith the third opinion, that the 
diforder is occafioned by a vegetable fubftance.. The fact eftablithed 
TD E P rttOr RES E 2s CE A AO a ae E nd n 2 
by the above experiments, that the duft of Brand, carried into the 
ficld with the feed wheat, like other vegetables propagates itfelf, 
gives the higheft degree of probability to this opinion ; which is ftill 
further confirmed by the refult of Mr. Lathbury’s experiment of 
fowing it as it were upon its native foil (efpecially in the cafe of 
wheat taken from a clean fample), which feems to have occafioned 
4 | Eee ORG m age teas ie At. cdd LEM YN (Cie et See X ee ot soph Re aks. TIO? 1 ; 
the deftruCtion of three-fourths. of its produce. _ This is as decifive a 
| Proof as can be defired of its being a vegetable. But what I think 
places the matter beyond all doubt, is that this duft, when put under 
a powerful magnifier, exhibits every appearance of minute feed. 
1 happened to take fome duft from branded grains, I think laft 
year, which I laid by for future infpection.. After I had begun this 
Paper, I ftrewed fBme of that duft upon a piece of glafs; and putting 
it under a very ftrong magnifier over a refle&or, I was highly grati- 
fied 
