Proceedings of Seventh Annual Meeting 71 



of the state's area, 76 per cent of its population and 82 per cent of the 

 total ratables. 



In addition to the work set forth, a locally supported campaign 

 has been carried on in the area included within and adjacent to the 

 New York Shipbuilding Corporation and the Pennsylvania and 

 New Jersey Shipbuilding Company. This territory covers 15 square 

 miles in Camden and Gloucester counties. 



MONEYS expended 



Since the beginning of anti-mosquito work in New Jersey the 

 State Experiment Station (to June 30, 1920) expended $254,175.00 

 and the county mosquito extermination commissions (to October 31, 

 1919) $1,484,290.00 in mosquito control. During 1919 the county 

 mosquito extermination commissions spent $243,384.71. This sum 

 is 37 per cent of the $653,777.52 which could legally have been 

 spent by these commissions. During the same period the State Ex- 

 periment Station expended $15,000.00 on this work. The total cost 

 of control work by the mosquito commissions was about $0,097 per 

 -$1,000.00 of ratables for the 11 counties as a whole, or $0.11 per 

 capita on the basis of permanent population. Of the sums spent by 

 the county mosquito extermination commissions about 12.7 per cent 

 was devoted to administration, 17.7 per cent to inspection, 14.9 per 

 cent to temporary elimination, 20.5 per cent to maintenance of per- 

 manent drainage work and 27.4 per cent to new permanent drainage 

 work. The tables following herewith will serve to give the details 

 by counties. 



Of the funds expended by the State Experiment Station in 1919- 

 20, approximately one-half was devoted to the maintenance of the 

 staff, which acts as a correlating and informational agency for local 

 boards of health and the county mosquito extermination commissions 

 and one-half to actual drainage of the salt marsh. The actual drain- 

 age work done was divided about equally between the counties of 

 Ocean and Cape May. 



WORK done 



The inspection or patrol work covered throughout the season 

 about 320,000 acres of upland and about 115,000 acres of salt marsh. 

 Temporary control of mosquito breeding by use of oil was carried out 

 intensively in the counties of Hudson, Bergen, Essex, Union and 

 Passaic. Oil was used in a supplementary way for the elimination 

 of the tag ends of broods, which the drainage systems did not destroy 

 in the counties of Middlesex, Monmouth and Ocean. In Atlantic 



