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we installed a twelve-inch Worthington centrifugal pump — ca- 

 pacity 2,800 gallons per minute — propelled by a fifteen-horse- 

 power, single-phase electric motor. The pump was started on 

 May third and operated on a twelve-hour-per-day schedule until 

 late in September, throwing into* the creek during that period 

 approximately two hundred and sixty million gallons of water, 

 and keeping the entire tract dry and free from breeding. 



This pump will pay for itself in two seasons in a saving of oil 

 and labor, and accomplish infinitely more than could be accom- 

 plished by the oiling process. It can be operated for about sixty- 

 five dollars per month. Our Commission will undoubtedly install 

 others of like character as a matter of efficiency and safety. 



The President — This paper of Mr. Delaney's is open for 

 discussion. 



Dr. HeadleEi — Mr. Chairman, this is the first case of the 

 use of an efficient pump for mosquito extermination work in 

 N>ew Jersey with which I am acquainted, and the area which 

 this pump is serving was one of the worst in the Sitate, breeding 

 not only the salt-marsh species but ibreeding the house mosquito 

 in enormous numbers. I think that the Commission of Hudson 

 is to be congratulated on having taken this step as a means of 

 clearing up one of the worst areas of the State. 



Mr. Judd— Might I ask Mr. Delaney whether his pumps drain 

 the entire surface of the area which they serve? 



Mr. Delaney — Yes, sir. 



Dr. HeadleE — Mr. Chairman, I think we ought to know, 

 generally, the cost of the installation of that pump, the number 

 of acres it is supposed to serve, and the cost of cutting ditches 

 that carry water to the pump. 



The President — Suppose, Mr. Delaney, for the benefit of 

 the members of the Association, you give us the cost of the 

 installation of the pump and the number of acres drained. 



Mr. Delaney — I am quite sure the gasoline pump cost about 

 six hundred dollars. We did the work ourselves, and we saved, 

 no doubt, probably one hundred and fifty or two hundred dollars. 



