CO TENTS. 



Page 



Preface, ix 



The Gypsy Moth, Porthetria dispar (L.). 

 Part I., E. H. Forkush. 



The gypsy moth : its history in America, 3 



Its introduction, 3 



The unnoticed increase of the moth, 4 



Influences that at first retarded its increase, 5 



The first destructive appearance of the moth, 7 



The outbreak of 1889, 10 



The swarming caterpillars become a serious nuisance, . . . . 14 



The destructiveness of the moth, 23 



How the people fought the moth, 28 



The matter brought to the attention of the public at large, .... 32 



The commission of 1890, 38 



The work of 1891, 45 



The work of 1892, 62 



The work of 1893, 68 



The Avork of 1894, 72 



The work of 1895, 83 



The number of men employed and work done, 1890 to 1894 inclusive, . . 89 



The increase and distribution of the gypsy moth, 94 



The rate of increase, 94 



Distribution as aflfected by food supply and other natural causes, . . 97 



The connection of distribution and population, 99 



The distribution of the moth by man's agency, . . . . . . 100 



A study of the methods and routes of transportation, 106 



The effect of the work of extermination on the distribution of the gypsy 



moth, 113 



Methods used for destroying the gypsy moth, 117 



The destruction of the eggs, 117 



The destruction of the caterpillars, 126 



Measures for destroying all forms of the moth, 164 



A summary of the methods most useful to the farmer, . . . , 194 



The annual inspection, 196 



Measures for the information of the public, . . . . . . . 198 



Natural enemies of the gypsy moth, 203 



Insect-eating birds, 203 



Birds seen to feed upon the gypsy moth, 207 



The progress of extermination, 244 



The Gypsy Moth, Porthetria dispar (L.). 

 Part II., C. H. Fernald. 



Scientific and common names, 255 



Bibliography, 257 



Distribution in other countries, 267 



The gypsy moth in England, .268 



Injuries in the old world, 273 



Methods of destroying the gypsy moth in Europe, 284 



