CONTENTS. 



PAGE 



Introductory, ........... 5 



I. Caterpillar Diseases in General, ...... 7 



Common Diarrhoea; Bead Disease; Muscardine; Pebrine; 

 Flacherie. 



II. Resume" of Some Experiments with Flacherie in 1909, ... 12 



III. Flacherie Experiments in 1910, ...... 14 



A. General, ......... 14 



Acknowledgments; General Points of the Work; Con- 

 trol Experiment. 



B. The Single Experiments, ...... 20 



Concord, North Carver, Boxford, West Bedford, Haver- 

 hill, Marshfield, Kingston, Brockton, Beverly, Co- 

 hasset, Hingham, Byfield. 



IV. Summary, .......... 53 



V. Final Conclusions, ......... 55 



