PREFACE. 5 



.TURious TO Vegp:tation ;'' Professor Saunders' recent work, 

 " Insects Injurious TO Fruits ;" Figuier's "Insect World;" 

 "The Canadian Entomologist," and the "Bulletins of the 

 United States Entomological Commission." 



In the preparation of this book I have been placed under 

 special obligations to D. W. Coquillet, Esq., late Assistant 

 State Entomologist of Illinois, who has been assiduous in 

 his labors for the last four months, in preparing manuscript, 

 reading proof, and assisting me in my labors connected with 

 the issuance of the volume. 



In the matter of illustrations, some of those presented have 

 been copied from previous works of this character, and due 

 credit has been given in another place. 



I should be doing an injustice to my own sense of propriety, 

 if I submitted these pages to the criticism of the reader with- 

 out acknowledging the courtesy of my publishers, H. S. 

 Crocker & Co., of Sacramento, at whose establishment the 

 typographic work has been done ; and also if I failed to add 

 that the binding in which the volume appears, was the work 

 of a fellow mechanic of Sacramento, Frank Foster, Esq., the 

 pioneer bookbinder of the city. Very much is due to the skill, 

 patience, and care of 0. H. Tubes, foreman for Crocker & Co., 

 for the freedom of the book from errors, and for its neatness 

 of appearance. 



This volume presents to the reader the results of my investi- 

 gations during the eight years last past. Two years of that 

 time I had the honor to fill the position of Chief Executive 

 Horticultural Officer of this State, a fact that it is deemed 

 proper to state, that the reader may be fully informed of the 

 opportunities enjoyed for the preparation of the work now 

 offered him. 



I am much indebted to the fruit-growers of California, and 

 to the cultivators of the soil generally throughout the State, 

 for their cordial assistance in my work ; and I feel it no more 

 than right to close this page by saying that to the press of the 

 State which first enabled me to awaken the people to the dan- 

 ger threatening them from insect pests, and has since given me 

 free use of its columns, not only my thanks are due, but those 

 of all the citizens of California. M. C. 



Sacramento, Cal., September, 1883. 



