the total amount of 5.34 inches — that of one day, July 5, amounting 
to 1.44 inches. 
Treatment of seed with kerosene. — The seed-corn experiment with 
kerosene was so varied as to bring into comparison the results of sim- 
ply dipping the seed and planting immediately afterwards, and of 
soaking it for 5 m-nutes, 10 minutes, 20 minutes, and 30 minutes, and 
for 11 days, 20 days, and 41 days. Tests were likewise made of the 
effect of first soaking the seed in water before putting it into kerosene. 
The checks to these experiments — 2050 kernels which were planted 
in ten lots of 50 to 500 kernels each at several dates between June 15 
and July 21 — germinated in ratios ranging from 83 to 96 percent, with 
an average of 89 ; and with this average, of course, the germination 
ratios of the various experiments are to be compared. 
Eight experimental lots, containing 2225 kernels in all, received 
the simplest treatment— a mere dipping in kerosene immediately before 
planting. The ratios of germination for seven of these lots varied 
from 84 to 97, with an average of 91. The eighth lot, of only 50 ker- 
nels planted in earth kept continuously moist, gave a germination ratio 
of 62 percent, and including this the average for the series is 87.6. 
It may fairly be said, consequently, that injury by this treatment was 
practically imperceptible, but that a suspicion is created of possible 
damage to the seed if the weather is continuously wet after planting. 
Eight lots of seed, numbering 2225 kernels in all, were soaked in 
kerosene for 5 minutes just before planting. Here also no perceptible 
damage was done to the seed, the germination ratio amounting to 88 8. 
to be compared with 89 for the checks. 
Of eleven additional lots, averaging 100 kernels each, soaked in 
kerosene for periods varying from 10 to 30 minutes, 85.2 percent grew, 
the ratios ranging from 78 to 96. We begin to see here evidences of 
slight but obvious injury to the seed as a consequence of the treatment. 
It is nevertheless puzzling to find that 89 kernels grew out of 100 ker- 
nels soaked for 11 days, and that 86 percent of 50 kernels soaked for 
20 days and 80 percent of the same number soaked for 41 days, also 
grew. 
In many of these kerosene experiments, even tho the kernels 
sprouted eventually and plants appeared above ground, the germina- 
tion was much retarded and the plants were more or less distorted and 
deformed — an efifect returned' to on a later page of this article. 
Kerosene emulsion. — For some obscure reason the result of the 
treatment of 400 kernels with kerosene emulsion June 15, was very 
much less favorable than that of 1500 kernels planted June 28. In 
the first experiments the seed was soaked for 30 minutes in emulsion 
diluted to contain 10 per cent. 20 percent, 40 percent, and 50 percent 
■of kerosene, with the effect to give a germination ratio, eleven days 
after planting, of 46 percent for the first, 76 for the second, 63 for the 
third, and' 57 for the fourth of these lots, or an average of 60.5 percent 
to grow from these plantings. June 28, emulsions were used contain- 
ing 10, 20, and 40 percent of kerosene, in which corn was soaked for 
30 minutes, each of three lots containing 500 kernels. The percent- 
