15 
injury are available, since but three towns reported damage to corn 
as more than considerable. On the other hand, the wheat acreage, 
including both spring and winter varieties, does not reach ^350 
acres per township in any of the groups, nor fall as low as. o20. 
Evidence as to the [connection between wheat culture and chinch- 
bug injury can be expected here only as a result of close obser¬ 
vation, in small neighborhoods; and such evidence for Northern 
Illinois will be presented under another head. 
Here, also, the tables for subdivisions (northwestern and north¬ 
eastern Illinois) agree in general with those from the larger table 
including both.* 
Table IY. 
The Whole State, 812 Towns. Injury to Corn , 1887, compared 
with Crop Areas for the Same Year. 
Degree of Injury. 
No. of 
Tps. 
Wheat. 
Barley. 
Rye. 
Oats. 
Corn. 
Grass. 
None. 
395 
956 
57 
200 
2,873 
5,302 
4,888 
6,768 
Little. 
123 
1,431 
65 
193 
2,633 
6,367 
"Moderate. 
25 
1,520 
57 
153 
2,149 
4,060 
5,685 
Considerable. 
56 
1,856 
47 
83 
1,735 
3,538 
4,809 
Great. 
34 
2,968 
• 2 
40 
1,610 
3,163 
3,800 
Very great. 
52 
2, 380 
1 
22 
1,51 
2,814 
3,151 
Nearly complete. 
98 
2,977 
3 
23 
2,124 
3,067 
3,532 
Complete. 
29 
4 ,329 
1 
28 
2, 726 
3,298 
3,273 
Combining now the facts derived from the whole State in one gen¬ 
eral table setting forth the relations of the acreage of the principal 
farm crops to chinch-bug injury to corn for the year 1887, we notice 
first the greater value to be assigned to the averages presented by 
this table, and the greater weight to be attached to its results,. 
; due to the greater area covered by it, and the more numerous ob¬ 
servations which it summarizes. Representing reports from 812 
towns, and no group including less than 25, we must consider this 
table as of much higher authority than the preceding ones. 
Its showings, however, are not essentially different from those 
already set forth, amounting, in fact, to a combination of those 
from the first two of our series. The wheat numbers increase, 
with only one unimportant break, from 956 acres per township 
where the corn was not injured to 4,329 where it was completely 
destroyed, the successive steps of increase thus averaging about 
fifty per cent, of the lowest number. The column of figures for 
? each of the other crops presents us, on the other hand, with a 
I mixed series, descending uniformly to the grade of injury marked 
i as “very great,” and then ascending by two steps .to the end, 
clearly a repetition on a larger scale of the facts exhibited by the 
separate tables for Central and Southern Illinois. The southern 
*The only exoeptior to this statement is shown by the spring-wheat series for Northwestern 
Illinois. Taking that alone, we have a noticeable increase from 326 acres per township to 411, cor¬ 
responding to a damage to corn ranging from “none” to “considerable.” 
