CONTENTS. 



PAGE 



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



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



Common Diarrhcea; Bead Disease; Muscardine; P^brine; 

 Hacherie. 



II. Resum6 of Some Experiments with Flaoherie 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, Bs^field. 



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



V. Final Conclu.sions, ..... . 55 



