TABLE OF CONTENTS 



PAGE 



FOREWORD AND ACKNOWLEDGMENTS , . v 



I. INTRODUCTION 3 



II. TECHNIC 5 



1. The Louse Stocks 5 



2. Control Examinations of Stock Lice ....... 6 



3. Control Examinations of Polish Lice 7 



4. The Feeding of Lice '..'.".'.' . 8 



5. The Sectioning of Lice 9 



6. Dissection for Smear Preparations of Lice 11 



7. Staining Methods 12 



III. CLINICAL OBSERVATIONS 15 



1. Methods, Material . 15 



2. Mortality ......... 1 17 



3. Incidence . 17 



4. Prodromata and Onset 18 



5. Eruption 20 



6. Lungs and Heart . . 21 



7. Spleen 21 



8. Blood 21 



9. Urine . . 23 



10. Agglutination Reactions 23 



11. Clinical Course 24 



12. Treatment 29 



13. Tabulation of Clinical Data 32 



IV. THE WEIL-FELIX REACTION . 34 



1. Methods . 34 



2. Tabulation of Controls 35 



3. Tabulation of Agglutination Tests on Typhus with Reference 



to Day of Illness 37 



Vll 



