176 THE CANADIAN ENTOMOLOGIST. 



special attention, and his knowledge of entomology has been of great 

 service to cranberry growers. The bogs near Jamesburg are looked upon 

 as being the finest in the State, and the prospect this year is very favour- 

 able for a good crop. The berries are just now forming, the inflorescence 

 having been in great profusion. Mr. Martindale identified all the plants 

 that were collected, he having been engaged in botanical study for more 

 than thirty years, and has become familiar with all the species growing in 

 the State. He stated that a belt of country crossing New Jersey diagon- 

 ally^ from Sandy Hook on the coast to near the city of Salem on the 

 Delaware river side, in widtli about twenty miles, known as the pine 

 barren regions, was the best botanical ground to be found east of the 

 AUeghenies. Many entomologists have not heretofore given sufficient 

 attention to botanical study, but it is now well known that many species 

 of insects feed exclusively on certain plants, and a knowledge of these 

 aids much in the determination of the collector's gatherings. 



The Geological Survey of New Jersey, so long in charge of the late 

 Professor Cook, has already published catalogues of the fauna and flora 

 of the Slate, but there yet remains much desirable work to be done by 

 the careful collector. The late Dr. Joseph Leidy, of Philadelphia, 

 regarded the swamps of New Jersey as the best collecting ground east of 

 the Mississippi Valley, and during the preparation of his memorable work 

 on the Fresh Water Rhizopods made many and frequent visits thither, and 

 thereby greatly enlarged our knowledge of species. The late Chas. F. 

 Parker, of Camden, in company with Mr. Martindale and others, explored 

 all that part of the State lying south of Trenton for botanical specimens. 

 Mr. Martindale has collected the marine flora (sea mosses), and already 

 published the results of his years of study in that department. Mr. 

 Calvert, of Philadelphia, has completed a list of all the dragon flies known 

 to this section. Dr. Henry Skinner has published a list of the butterflies 

 that have been found in the vicinity of Philadelphia. All these greatly 

 aid the student of natural history, and the annual field gatherings of the 

 active entomologists are doing a good work in fostering a more social 

 feeling among the many persons engaged in the study of insect life. No 

 special arrangements were determined upon for another year, but it is 

 expected that the annual gatherings will be continued, and all persons 

 interested are privileged to attend. It was much regretted that Dr. Horn, 

 the eminent entomologist of Philadelphia, was prevented by previous 

 engagements from being with the party. 



