30 N. J. Mosquito Extermination Association 



as in this instance, proves a serious handicap in mosquito work, as 

 control of breeding over such a widespread area would be absolutely 

 impossible under such circumstances. This is one case in which 

 co-operation has not been received as efforts to hasten the removal 

 of the dam have been unsuccessful. The dam is holding back three 

 foot of water. 



As an indication of possible trouble from dikes, the break which 

 occurred in the latter part of the summer in the dike on the west 

 side of the Hackensack River, north of the Harrison Turnpike, on 

 the property of the Seaboard By-Products Coke Company, is an 

 example. A loo foot section of this dike gave way under the pres- 

 sure of a flood tide, the weakness evidently being caused by a sort 

 of quick sand formation beneath the bank and into which many 

 thousands of yards of various material, including broken stone, 

 was deposited by the company before a suitable repair could be 

 accomplished. This resulted in a large area of marsh being flooded 

 for several weeks. Part of this area was dammed off and oiled as 

 soon as breeding appeared. There was an emergence from the 

 remaining part, too great in extent to be oiled, but not in as large 

 numbers as had been feared. 



All early breeding on the marsh in general was controlled w^ith the 

 exception of some scattered breeding in the latter part of June, which 

 was small in extent. 



A word would seem fitting at this time in relation to the project 

 of pushing to completion in the next two or three years the improve- 

 ments necessary to bring the control of the Hackensack Valley marsh 

 to the 100% efficiency point, a matter discussed at the meetings of 

 the Executives of Mosquito Control of New Jersey last winter. 

 Such improvements in Hudson County embraces the final extention 

 of the drainage systems, the installation of one and possibly two 

 additional pumps, the dredging of a part of Penhorn Creek, the 

 projecting of two or three drains under railroad embankments, and 

 the construction of one tide gate at a total cost of approximately 

 $50,000.00 in addition to that of the work which will be done under 

 the usual program for that period. Such improvements will be 

 effected in time by the commission but if the additional funds neces- 

 sary to finish the work in all the counties within the boundaries of 

 ' the valley in the shorter time proposed, were made available, a great 

 benefit to very extensive residential and industrial communities 

 would accrue and this commission heartily indorses the project. As 

 - funds will not be available through the regular sources in the coun- 



