from other fungi or from bacteria; or, to make certain, a second
bait may be used to catch the fungus from the first bait.
 As soon as all the food material is used up the fungus
builds sclerotia.
 HOW TO TREAT.
 Before the cause of the blight was known many tests of dif-
ferent fungicides were made. They were applied in the usual
way, i. e., they were sprayed thoroughly over the foliage of
the tomato plants. All proved equally fruitless either to prevent
or to check the disease. As soon, however, as the nature of the
fungus was discovered, it was easily understood why the fungi-
cides did not check the blight.
 All the tests show that a plant once attacked by blight is a
hopeless case, at least the part attacked. Mr. A. A. Smith, of
Lawtey, Fla., in the Farmer and Fruit Grower of May 20, 1893,
recorded a very interesting result from the treatment of this
disease with Bordeaux mixture. At the urgent requests of
tomato growers the diseased fields were visited and the disease
studied in the field. In most cases the work of destruction had
been done, and nothing was left to do but to record the fact.
After some delay a young field was found at Grand Island that
was suitable for work in this line. This was a field of late
planted tomatoes on the farm of Mr. Colbert, who willingly con-
sented to give it over for treatment. The field was divided into
eighteen plots. Twelve were treated, and six alternating with
the treated plots were left untouched, as checks.
 The work labored under many and decided disadvantages.
The distance from the college and the college duties interfered
with the most diligent attention. The lateness in the season
rendered the plants less vigorous from having exhausted the fer-
tilizer and not having been cultivated for some time.
 The results are therefore all the more striking in that they
are decidedly faN orable under the most adverse conditions. Other
diseases had seriously injured the field. In this discussion all
doubtful cases have been thrown out, and we will confine our-
selves strictly to the blight.
 The field was carefully gone over, and every plant num-
bered. Notes were taken on each plant that showed any signs
of blight or other disease. By careful estimate it was found that
61 per cent. of the plants were blighted before being treated.
The plots were chosen so that the untreated, or checks, would