670 NEW JERSEY AGRICULTURAL COLLEGE 



but these also are species that have a limited range of flight and are 

 rarely found outside the limit of their breeding area : — most of the 

 species have never been found in cities or towns. 



There would also remain what may be called the dirty-water mos- 

 quitoes: — the species of Anopheles and the common rain barrel or 

 house mosquitoes. These offer a problem eminently within the control 

 of local authorities and out of the domain of State interference. They 

 breed in sewer catch basins, puddles, cisterns, rain barrels and in every 

 body of stagnant water no matter how small ; but they usually remain 

 pretty close to where they are born, and any active board of health 

 inspector can secure the elimination of 90 per cent, of all the more 

 obvious breeding places in his jurisdiction in a very short time. 

 Complete freedom from the pests will not be secured until every 

 person is educated to recognize the larvae and the dangers of dirty 

 water; but comfort in streets and parks and in clean sections of the 

 cities can be obtained by the elimination of the salt marsh species. 



As to benefits to be derived aside from the comfort of living; 

 the increase in value of shore and suburban property would justify 

 the expenditure over and over again. On Barnegat bay alone millions 

 could be safely invested, while in the suburbs of Newark and along 

 the Orange mountains, property would be available for building sites 

 which is now of little or no value because the swarms of mosquitoes 

 in summer make it impossible to enjoy the natural beauty of the 

 location. 



The scientific work of the survey has been continued, but the 

 character of the season was so unfavorable that some of the problems 

 could not be worked out, simply because there were no breeding pools. 

 Mr. Grossbeck was in general charge of the records and the following 

 notes have been prepared by him, though I have added notes and 

 conclusions not in Mr. Grossbeck's records : 



NOTES OF THE SEASON. 



During the summer of 1905 little was accomplished in the way 

 of collecting and studying species other than those which were of 

 economic importance, and these only to determine when broods would 

 issue, making it possible to supply information to municipalities that 

 would be directly affected. 



