293 
Both in this country and in the United States the conidial form 
of fruit is responsible for the rapid extension of the disease. 
: e simultaneous occurrence of this well-known American disease 
at two widely separated localities in this country is difficult to 
explain, as living melon plants are not imported, and the fungus 
- does not attack the fruit. 
centre, 9-16 x 4-6 uw. 
scigerous form. Perithecia depressed-globose, rough, dark 
coloured, mouth papillate, becoming almost superficial, 100-165 
lam. ; asci cylindric-clavate, 8-spored ; spores hyaline, oblong- 
fusoid, I-septate, distal cell often largest, usually more or less 
constricted at the centre. 
he result of preventive experiments conducted in this country 
are not yet recorded. According to Grossenbacher spore inocula- 
tions conducted in the field were almost complete failures, and it is 
considered that the very moist, warm environment of the green- 
ouse is essential for the infection and development of the fungus. 
Further experiments showed that the spores of the fungus are not 
illed by exposing infected soil to weathering conditions of winter, 
nor by fumigation with hydrocyanic gas. It seems that an epidemic 
may be prevented by spraying thoroughly with Bordeaux mixture 
before the disease appears, and repeating at intervals, to keep the 
plants covered with the solution. TE fe 
- G. Grossenbacher ; N.Y. Agric. Expt. Sta., Technical Bull. 
No. 9 (1909), | 
XXXIX.—_LIGNUM NEPHRITICUM. 
( Eysenhardtia amorphoides, H.B.K.) 
Orro Srapr. 
Karly in the present hier an inquiry was addressed to the 
R 
of a sapotaceous wood, and did 
reaction with water, Linnaeuw 
