APPENDIX I. IOWA AND DAKOTA DATA, 1877 
[21] 
Nevada, Storey County, July 2, 1877. 
You will pardon me for volunteering a few suggestions on the locust pest. 
In your report of June 15 to Governor Garber, of Nebraska, you use the following 
language, which appears to me to be erroneous : " Heretofore the swarms moving from 
the south northward toward their native habitat have not, so far as we are aware, 
done any injury ; " and again, " Hence, that the race must run out here, and that it can 
only be continued by repeated invasions from its habitat in the far Northwest or Rocky 
Mountain region." I have observed the locust in this and the Rocky Mountain region 
for a number of years, and have come to the conclusion, partly from observation and 
partly from theory, that their native habitat is not in the far Northwest, but that they 
migrate there through natural causes ; that -when they migrate they never return to 
their native habitat, which is in a warm, dry soil, where there is but little winter and 
slight rainfall. They are very sensitive to heat and cold, and therefore when the full- 
fledged insect gets ready to migrate the warm south wind, invigorates them ; they rise 
up in the air and are carried north until they reach a climate which is not congenial, 
and where forage is scarce ; they then, or their progeny, next season or perhaps both, 
■change their course to a southeastern direction. Some swarms first migrate from their 
native habilat east and others west, but I think by far the most migrate in a northern 
direction. The locusts that came to this part of the State last fall (1876) were the 
progeny of those that left their native habitat in 1875 and are now becoming extinct. 
I think they will not survive the present season. I think by observation it can be 
known whether the insect is in its native habitat or not. 
I suggested these thoughts in a communication to Professor Rilev last winter. 
J. S. FRAZIER. 
DATA FOR DAKOTA. 
Sioux Falls, Lixcolx Couxty, May 21, 1877. 
I have seen a willow grove in Iowa stripped of foliage aud a field of corn adjoining 
it not injured. I have been also informed by reliable parties that a farmer living ad- 
joining some timber has supplied Canton with a large amount of garden vegetables 
•during fall and winter, when his neighbors had not enough for their own wants. 
Prom this it would appear that if we had a larger acreage of timber our crops might 
be to a great extent, if not entirely, saved from the ravages of the locusts. 
B. C. JACOBS. 
Wahpetox. Richlaxd Couxty, June 27, 1877. 
Question 4. Commenced hatching about May 10. Most numerously hatching about 
May 25. Still hatching in moderate numbers. 
Question 6. Uncertain, very small, possibly one egg-cell out of 100 failed ; cause, small 
worm entering cell and devouring eggs; also small red bug doing same thing. 
Question 7. In the most thoroughly packed sandy soils. 
Question 8. Same as No. 7 . 
Question 11. In the country, up to present time, owing to splendid growing weather, 
crops have kept well ahead of 'hoppers, until within the past week their ravages are 
.showing in many localities; a very few fields almost ruined in past lew days; others 
slightly; many not at all, but the pest is increasing so rapidly in size, number, aud 
voracity that gravest fears are felt. 
Question 12. Wheat, because it is the principal crop. Pease as yet have escaped. 
Question 13. Pease, for the reason that thus far they have protected themselves. 
Question 15. Generally south aud southeast, occasionally in opposite directions. 
Question 16. The sheet-iron "'hopper dozer'' at first with strong hopes of saving 
•crops, but when ten came to look after each one captured, farmers despaired but kept 
using the machine until the grain was too high and the Choppers to agile. 
Question 18. The sheet-iron '"dozer," as described in Saint Paul Pioneer Press: A 
strip of sheet-iron, 12 or 14 feet long, turned up at back aud ends 6 or 8 inches, in front 
I inch; the pan covered with tar, kerosene, soft-soap, &c, the whole drawn by wires 
or cords. * 
Question 20. In 1875 and 1876. 
Question 21. After careful observation several of us have concluded that if the prairie 
was packed seven feet deep over its entire surtace with grouse, prairie chickens, and do- 
mestic fowls, and they could get no other food, they might make some slight impression 
on the hordes. In 1865 I rode 113 miles one day on the railroad from Wilmar, Minn., to 
Breckenridge, Minn. ; the whole distance was through one continuous cloud of flying 
'hoppers filling the air as with snow-flakes as far above the earth as a powerful field- 
glass could distinguish them : how much farther west the cloud extended is unknown, 
