New YorK AGRICULTURAL IXPERIMENT STATION. 215 
INOCULATION OF POTTED MUSKMELON PLANTS. 
Inoculation of young muskmelon plants by pouring spores, 
suspended in water, over them.—Potted muskmelon plants 
which had been planted for this experiment (the Emerald Gem 
variety), had now attained to a size sufficient for use in inocula- 
tions in a moist chamber. They were from six to ten inches 
long, having from four to seven foliage leaves developed. Sep- 
tember 2 six of them were put in a large cubical moist 
chamber, in the greenhouse, having its sides and top of glass 
and its floor covered: with a layer of Sphagnum moss. The 
plants, floor and sides of the moist chamber were thoroughly 
sprayed with hydrant water. <A quantity of crushed pycnidia 
was put in each of six test tubes about half full of sterilé water 
and one tube slowly emptied on the vine and leaves of each 
of the plants. Also two of the potted plants were placed under 
separate bell jars in the laboratory. A tube of sterile water 
containing a large quantity of pycnidiospores was poured over 
one and the other left for a check. 
September 5 there were a number of leaves, in both the cubical 
moist chamber and under the bell jar, having brownish areas 
where the tissue was dead. Sections of the leaves were made 
and found to contain mycelium threading through all parts of 
the affected regions. Many of the flower buds and leaf axils 
had traces of the water-logged tissue noted as a symptom of 
this disease. On September 7 most of the leaves of the inocu- 
lated plant under the bell jar were wilted and drooping. It 
was photographed and many of the above facts may be seen 
by referring to Plate XI. The check under the other bell jar 
remained healthy. 
September 22 only four of the six plants which were placed in 
the large cubical moist chamber had been practically killed. 
The other two had a few dead regions on some of their leaves 
but had seemingly recovered. Two of the dead plants had a 
few scattered pycnidia on the vines but none on the leaves. 
Inoculation with pycnidiospores by wounding the host.—Sep- 
tember 6, four of the healthy potted plants were inoculated with 
