N. J. Mosquito Extermination Association 113 



this species was absolutely prevented, not a single adult specimen 

 being taken in any part of the county during the 1921 season. 



The control of sewer catch basin breeding, which is of prime 

 importance in built-up communities, has assumed such huge pro- 

 portions that a small auto truck was added to our transporta- 

 tion equipment and assigned to this work exclusively during the 

 pipiens breeding season. 



Our equipment was also supplemented by a gasoline driven 

 portable pump with a capacity of ,12,000 gallons per hour on a 

 twenty-foot lift, for use in the permanent elimination of pools 

 and other similar breeding places which cannot be drained or 

 filled in. The pump is employed principally on the upland 

 though opportunities also present themselves for its use on the 

 marsh. The equipment weighs 900 pounds and is readily trans- 

 ported on one of the commission's auto trucks. 



Excluding one municipality lying on the western limits of 

 the county, mosquitoes on the wing were noticeably absent except 

 during the short period from July 25th to August loth, when 

 comparatively few were present in widely separated districts. 

 At no time were they especially troublesome, many regions being 

 entirely free from them throughout the season. That annoyance 

 from mosquitoes is being steadily reduced in Hudson County, 

 through the work of the commission, is very generally and fre- 

 quently remarked by the inhabitants. This fact is presented 

 not as an unusual feature but as denoting progress in mosquito 

 extermination. 



President Meyers — Mr. Frank Miller, Chief Inspector of 

 the Middlesex County Commission, will read a paper for his 

 county. 



Mr. Frank M11.1.ER — Mr. Lewis E. Potter has been unable to 

 attend this convention. Pie has asked me to extend his regrets 

 and deliver his paper if that is agreeable. 



During the past year the Middlesex County Mosquito Exter- 

 mination Commission encountered a rather unusual problem in 

 the drainage of a large woodland swamp situated in the borough 

 of Metuchen and in the township of Raritan. While the methods 

 employed are not new to drainage work still it is believed that 

 they have not been in common use for mosquito extermination,, 

 and since, by the use of these methods, we were able to accomplish 

 the drainage more cheaply and efficiently than if done with hand 

 labor, a brief description of the swamp and the methods used in 

 drainage will be outlined in this paper. 



8 MOS 



