PREFACE. Vll 



beautiful, but very difficult, I fear. I have found some 

 splendid Coccinellidce here; and made out all the North 

 American species satisfactorily now. Have been from 

 S. Diego to Cariboo, far up on the Frazer, almost to 

 Hudson's Bay. I am now through my first year's work, and 

 shall go back to the East to count up and describe novelties. 

 I have taken vast numbers of things, though hardly as many 

 as I had hoped. They are not so common as in Spain " 



By reference to Mr Janson's note, it will be seen that 

 "The Revision of the Coccinellidcv of the United States " be- 

 came a part of his labours. Besides this, he contributed 

 some Papers to American Entomological Journals, treating 

 of the Dytiscidcv, Buprestidce, Phytophaga, Erotylidce, and 

 Endomychidce; and brought out a new Catalogue of the 

 United States Coleoptera, north of Mexico, which was printed 

 at Salem, in addition to work done at the Museum of Zoology 

 at Cambridge, Mass., and, preparations for further explora- 

 tions. 



It was therefore not a matter for surprise if, under such 

 incessant labour, while almost ignoring the requirements of 

 the body, his health, never so perfect as he imagined it to 

 be, at last seriously broke up, arid he was seen to be a dying 

 man months before he would acknowledge the fact to him- 

 self or others. Happily, in America as in England, he won 

 the respect and love of all who became acquainted with him ; 

 and before the end came, Providence had placed him 

 as a dying guest in a home where kindly and gentle 

 hearts and hands cared for and tended him as if he were a 

 beloved brother or son, while every friend besides, whom he 

 had won in the good city of Philadelphia, did his or her best 

 to render his last days of life as pleasant and easy as his 

 painful illness would permit. All honour to them for it ! 



