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LETTER OF TRANSMITTAL rx 
PREFACE xni 
CHAPTER I. 
Additions to the chronology of locust ravages 1 
The locust in 1878 in Minnesota and Iowa, 1 — in Nebraska, Texas and Indian 
Territory, 2 — in Kansas, 2, 3 — in Dakota, 3, 4 — in Colorado, 4 — in Wyo- 
ming, 4, 5 — in Utah and Idaho, 5-7 — in Eastern Oregon and Nevada, 7 — 
in Montana, 7-9 — Summary, 9 — The locust in 1879 in Nebraska, Washing- 
ington Territory, Dakota, and Texas, 10 — in Colorado, 10, 11 — in Wyoming, 
11, 12— in Utah, 12, 13— in Montana, 13, 14. 
CHAPTER II. 
The relation of the locust and its ravages to agriculture and the 
settlement of the territories 14 
Character of the Permanent Region, 15 — Importance of subduing the locusts 
in the Permanent Region 15, 16 — Difficulties of burning over, 16-18 — Ex- 
termination impossible, but subjection possible, 19, 20 — Settlement of the 
Permanent Region the best remedy, 19, 20 — Source of the more destructive 
swarms, 20 — Railroad needed in the Permanent Region, 21 — Agricultural, 
not pastoral, population wanted, 22 — Difficulties of constructing railroads 
in the Permanent Region, 22 — Climatic character of the Permanent Re- 
gion, 23 — Disturbing and fighting the locusts in the Permanent Region, 
24, 25 — Other proposed plans, 25 — Plowing not feasible, 25, 26 — The locust 
question solved in the Temporary Region, 26 — New definition of the Tem- 
porary Region, 27, 28 — The locust problem a national one, 29-31. 
CHAPTER III. 
Facts concerning and laws governing the migrations of locusts in 
all countries 31 
Most species of Acrididw not migratory, 31 — Migratory disposition not caused 
by anatomical differences, 31, 32 — Writers on locust ' flights, 32, 33 — 
Earliest accounts of locust flights hi Europe, 33, 34 — Locust flights in 
Europe in the middle ages, 34-37; in the seventeenth century, 37, 38 — The 
locust invasion of 1693 in Europe, 38, 39 — Locust flights in Europe in the 
eighteenth and nineteenth centuries, 40, 41 — Locusts in Asia and adjacent 
islands, 41 — in Cyprus, 42 — in Arabia and Syria, 43, 44 — in Persia, 44 — in the 
Steppes, 45 — in China, 46 — in Manila, 46 — in India, 46,47 — in Australia, 47 — 
inNewZealaud, 47 — Locust flights in Africa, 48 — in Northern Africa, 48,49 — 
in Egypt, 49 — in Algiers, 50, 51 — in Abyssinia, 51 — in Central Africa, 51 — in 
Eastern Africa and the Canary Islands, 52, 53 — Locusts in South America, 
53, 54 — Prevalence of locusts in deserts and dry regions, 54, 55 — Locust flights 
in 
