INFLUENCE OF CERTAIN CLIMATIC FACTORS 
25 
Observations in Ulster County, New York 
Perhaps the most complete records regarding the appearance of 
perithecia and ascospores are the inoculations at Ulster Co., New York. 
As stated above, Rankin (9) found at Napanoch, N. Y., that asco- 
spores were produced by the middle 'of November from inoculations 
made at different times from May I to August i. 
Table XI 
Monthly Climatological Data for Three Seasons at Mohonk Lake, N. Y. 
Temperature 
Precipitation 
Mean 
Summation 
Efficiency 
In Inches 
Days with Over 
.01 Inch 
I9I2. 
May 
58.6 
440 
54 
3-99 
1 1 
June 
65.6 
626 
70 
1.30 
4 
July 
70.6 
802 
86 
342 
II 
64.8 
624 
67 
3=88 
12 
September 
60.8 
475 
56 
3.28 
14 
October 
53-9 
4-50 
8 
1914. 
May 
61.2 
489 
4.10 
3 
June 
64.8 
599 
66 
2.40 
7 
July 
67.0 
702 
75 
3-75 
10 
August 
68.8 
745 
79 
2.54 
6 
63.2 
549 
65 
0.32 
2 
October 
55-7 
347 
46 
3-55 
2 
1915- 
May 
53.6 
281 
44 
2.54 
9 
June 
63.5 
561 
63 
2.65 
7 
July 
68.2 
716 
77 
8.24 
18 
August 
654 
641 
71 
7.94 
ID 
The writer made a somewhat similar series of inoculations during 
the summer of 191 4 at Woodstock. Inoculations were made each 
month in ten different localities on Overlook Mountain. None of 
these produced perithecia during the season of 1914, but most of them 
as well as inoculations made in May, 191 5, produced perithecia abun- 
dantly by the middle of August, 191 5. As Rankin made over 1,500 
inoculations and the writer made more than twice that number the 
results were probably not due to chance but to a difference in the 
weather conditions. 
The nearest weather station to these two localities is at Mohonk 
Lake, in Ulster County, elevation i ,245 feet. Mohonk Lake is between 
Napanoch and Woodstock, about equidistant from them and has about 
