So 



to firmly believe, that through the summer months the increase 

 of foliage would bring about conditions which would prevent 

 further breeding. Such hypothesis, however, was not proved as 

 the summer advanced. In June breeding was still found. Early 

 in July we kept a large gang of men constantly at work oiling 

 the breeding which was pronounced in several of these swamps. 

 And again in the middle of August inspection proved that breed- 

 ing and extended breeding was going on. In July and August 

 the breeding noted was of sylvestris rather than cantator. It 

 may be that the breeding found in August was due to the extra- 

 ordinary weather conditions of that month, and is by no means 

 normal. We feel, however, that until cared for these so-called 

 cedar swamps are a menace. A decided effort will be made 

 during the coming season to bring into effect some scheme of 

 drainage which will render the worst sections free from breeding. 



These, then, are the two extraordinary problems which Bergen 

 County is facing in her anti-mosquito work : a salt marsh under- 

 lined with roots and stumps, making the cutting of ditches for 

 drainage extremely difficult and costly, and increasing in pro- 

 portion cost of maintenance ; and the presence of acres of old 

 cedar swamps which afford breeding places hard to drain and 

 harder still to oil. If we have seemed a little slow, therefore, in' 

 conducting the work in Bergen County, it may be attributed in 

 part to those unusual conditions. We are not, however, discour- 

 aged, and fully believe that we will be able to work out a drain- 

 age scheme which will enable us to gain control. In drawing this 

 paper to a close, I would call your attention once more to the fact 

 that we have started slowly, and are not yet really under way in 

 Bergen County. We have installed, however, a comprehensive 

 drainage system on our salt marsh which be increased as found 

 necessary during the present spring. We are also planning to 

 install such supplemental tide-gates and dikes as conditions seem 

 to warrant. On the upland we have set in motion a plan of 

 inland swamp drainage which will be increased and perfected 

 as our strength becomes greater. Our house inspection will be 

 conducted on much the same lines as previously. In other words, 

 we believe that we understand the problem that is ours, and we 



