384 AGRICULTURAL EXPERIMENT STATION. 



are not especially troublesome except for sylvestris, which breeds 

 here to some extent. 



A very bad breeding place for Anopheles is in the cut through 

 which the Greenwood Lake Branch of the Erie Railroad runs. 

 Water trickles from the rocky sides at all times and forms a 

 little stream or a series of pools along the sides of the road bed. 

 There has been no real attempt to provide an escape for this 

 water, which could be easily accomplished by a well-made drain. 



A very large percentage of the house mosquitoes breed in the 

 cesspools, Arlington having no sewer system. 



The meadow just east of Arlington is not dangerous, except 

 close to the highland or just at the foot of the hills, where some 

 fresh-water species breed. 



The area between Saw Mill and Kingsland Creeks is good 

 meadow land, drained by large eight to ten-foot wide ditches, 

 which extend from the highland to the creeks. There are sluices 

 or tide gates at the mouth of each creek where it empties into 

 the Hackensack River, so that the water may run out on the 

 ebb and will not be able to get back on the flow. In this way 

 what would otherwise be a dangerous breeding place is kept in 

 .good condition at all times. 



Arlington, it will be noted, has no breeding places for salt 

 marsh species, yet these form a large percentage of those that 

 are troublesome during the summer. The local problem is a 

 very simple one and chiefly concerned with the proper care of 

 cesspools. 



d. THE KEARNY PROBEEM. 



The Kearny meadows are not so extensive as the Newark 

 meadows and are not all salt marsh. Above Snake Hill the 

 Hackensack River contains more fresh than salt water and that 

 affects the character of the meadow. Eighty years ago that por- 

 tion of it which lies north and west of the Pennsylvania Railroad 

 was dense woodland, which was intentionally burned over and 

 totally destroyed. The charred stumps and other tree remnants 

 yet remain to show what existed in the past. At present the 

 place is almost entirely grown up in cat-tails and other high 

 grasses, which is not dangerous as a breeding area. Mr. Brehme 

 made many inspections of this territory, but no larvae were ever 

 taken, except in a few pools near the Hackensack River opposite 

 Snake Hill, and these were not of the salt marsh species. 



South and east of the Pennsylvania Railroad line an altogether 

 different condition of affairs is found. The area between the 

 Pennsylvania Railroad, the Plank Road, the Hackensack and the 



