mixture remained on the leaves and what ran off usually fell on
the ground some distance from the root of the plant. June 28th,
the increase of blighted plants was 16 per cent., or 22 more than
the average of the untreated plants. The amount of Bdx. Mx.
used to each plant was the same in either case. The results of
spraying the foliage were exactly the same last year The nature
of the disease was not understood at that time, so the former
method was not tried. The above facts show that it is useless to
spray tomato leaves for the prevention of blight. I mean spray-
ing as the term is usually accepted. The acts further show that
where the vines and soil near the vines were treated with Bdx.
Mx. nearly 1-10 of the entire crop was saved by a single treat-
ment under the most disadvantageous circumstances On look-
ing at it from another stand point, the loss from blight was less
than of what it was in the untreated plots.
 The second fungicide tested was ammoniacal solution of
copper carbonate.*
 Six plots were laid off and notes on these carefully taken.
Four plots were treated with the solution and two left for the
checks. In plots one and six the stems and ground were treated
as plot one in Bdx. Mx. In the first plot a pint of fungicide was
used to the plant. Here the blight, on June 28th, showed an
increase of 8 per cent., or a gain Irom applying the fungicide,
of 51 per cent. In the sixth plot about a quart of fungicide was
used. Only two per cent. of the plants blighted after applying the
fungicide. In plots three and four the leaves were sprayed in
the usual way. The amount of blight was 14 per cent., or
slightly more than in the checks. The above shows that Amo.
Cu. Co. is a good fungicide for the blight, but it must be applied
in heavy quantities. The conclusion as to how it should be ap-
plied is the same as for Bordeaux Mixture.
 A solution of copper carbonate and ammonium carbonate
was also tried. The results of this showed a greater decrease in
the blight. In other words, the Am. Sol. of Cu. Co, as stated
above, was not quite as good as a mixture of ammonium car-
bonate and copper carbonate.t
 *The am. sol. of cu. co. is made by wetting 5 oz. of copper carbonate with a
quart of water, then add 3 quarts of ammonia water; when completely dissolved
and ready to apply, add water to make 30 gallons.
 JA mixture of copper carbonate and ammonium carbonate is made by mixing
3 oz. copper carbonate in a quart of water; dissolve I lb. ammonium carbonate in three
quarts of hot water; when cool, mix and stir well; dilute to 5o gallons.