OOIs^TENTS. 
Page. 
Introduction 7 
Etiology 8 
Geographic distribution 8 
Montana -8 
Idaho 8 
Nevada 8 
AVyoming 8 
Table of cases in ^Yestern ^Montana 12-19 
Climate 8 
Season 8 
Occupation 8 
Age 9 
Sex 9 
The parasite 9 
Method of infection 20 
Ticks of the Bitter Boot Valley 21 
Symptoms 21 
Incubation 21 
Fever 21 
Circulatory system 22 
The eruption 22 
Digestive system 23 
Urinary system 23 
Bespiratory system 23 
Nervous system 23 
History of cases 24 
Case 115 24 
Case 116 24 
Case 117 26 
' Case 118 27 
Case 119 29 
Case 120 29 
Case 121 34 
Morbid anatomy 38 
Bigor mortis 38 
Skin 38 
Nervous system 38 
Bespiratory system 38 
Circulatory system 38 
Digestive organs 38 
Kidneys 38 
Prognosis 38 
3 
