New YorK AGRICULTURAL EXPERIMENT STATION. 75 
each, were placed for five minutes in corrosive sublimate solutions 
having a strength of 1-500, 1-1000, and 1-2000. A fourth lot 
of one hundred seeds was soaked in distilled water for five min- 
utes as a control. The seeds were sown in pots in the green- 
house on April 7 and covered with soil to a depth of three-eighths 
of an inch. On April 17 the number of plants showing above 
ground was as follows: Control, 75; corrosive sublimate 1-500, 
74; corrosive sublimate 1-1000, 80; corrosive sublimate 1-2000, 
70. The treated seed gave seedlings as vigorous as those from 
the control. Apparently, there was no injury in any case. 
As 1-1000 is the strength of corrosive sublimate used on seed 
potatoes it was next undertaken to determine the length of time 
that cabbage seed may be exposed to it without injury. April 
22 one hundred cabbage seeds were placed in 1-1000 solutions of 
corrosive sublimate for periods of 15, 30 and 60 minutes. The 
same number of seeds were soaked one hour in distilled water. 
After treatment, the seeds were planted as before. 
May 3 the seedlings were counted with the following result: 
Control, 69; corrosive sublimate 15 minutes, 73; corrosive sub- 
limate 30 minutes, 82; corrosive sublimate 1 hour, 71. In 
this experiment the plants from untreated seed seemed a trifle 
more vigorous than those from treated seed. However, in view 
of the fact that the percentage of germination was not lowered 
in any case it seems likely that the greater vigor of the control 
plants was due to some other cause than the treatment. — 
Later, a pound of cabbage seed was soaked for fifteen minutes 
in 1-1000 corrosive sublimate solution apparently without injury. 
The seed germinated satisfactorily and the plants grew thriftily. 
EFFECT OF FORMALIN ON GERMINATION. 
In order to determine whether cabbage seed may be disinfected 
with formalin without injury to the germination the following 
experiment was made: Ten cubic centimeters of formalin (40 
per ct. formaldehyde) was mixed with 2400 cubic centimeters of 
water. In this solution eight lots of cabbage seed, 100 seeds in 
each lot, were soaked for different lengths of time; two lots, 15 
minutes; two lots, 30 minutes; two lots, one hour; two lots, 
two hours. Two other lots were left untreated for a check. As 
soon as the treated seeds were dried they were sown in boxes 
