DISEASES. 145 
what higher for two or three days. This will cause the 
sulphur to throw off fumes, which are readily perceptible 
to the smell, and will check the further progress of the 
past if present, or prevent its appearance if not so. e 
have used all the supposed remedies that we could collect 
a knowledge of, by way of experiment, without being 
able to diseover anything more than temporary relief, 
while the fumes of sulphur, as above recommended, have 
never failed to immediately check, and if water be with- 
held during the continuance, to finally overcome it. There 
need be no ferr of sulphur doing harm to the foliage; so 
long as ignition dies ut take pl.ce, it may be used with 
confidence. Herein lies the secret. If allowed to burn, 
chemical action goes on, and ickaos acid is produced, 
which in its then gaseous form will i se destroy all 
foliage sor which it comes in con’ 
The other kind (Botrytis?) cet like a fine and 
delicate ay mouldiness, and vegetates along the young 
wood and tender growth of the stem, the leaf stalks, over 
the surface of the berries, and upper side of the leaves; 
enveloping and covering the parts so as to prevent the 
further progress of the fruit, cause the leaves to fall, and 
the branches to cease growing. It is not, as in the 
dete example, confined to late crops, but will attack 
early also, and is often most prevalent when 
too a ay and cold a temperature has been allowed, more 
particularly if a strong moist heat has been previously 
kept up; cold drafts will increase the tdaliewey—ienes 
great caution is necessary in ventilating, or the 
of that atmospheric peculiarity which takes place when 
the moisture that is in solution i in the atmosphere becomes _ 
opest by a sudden transition as a es temperature. 
will sh w that th hich at- 
