372 AGRICULTURAL EXPERIMENT STATION. 



ditches. Tliis, fomierly one of the largest mosquito mills, is 

 now almost absolutely safe. 



The last of the spaces east of the Central Railroad and ex- 

 tending to Newark Bay is between Maple Creek and Bound 

 Creek. Breeding areas were plentiful here and ditches were run 

 between Maple Creek and Bound Creek to serve as outlets fox 

 ditches run to drain the chief breeding areas. The tides run 

 clean through these cross ditches into the connecting ditches and 

 fish are found in them everywhere. All the sods have been re- 

 moved and used to fill up the deeper holes or those so small and 

 remote as not to drain easily. The ground is now clear, free 

 from water and believed to be mosquito safe. 



West of the Central Railroad, between Bound Creek and Maple 

 Creek, a swampy area extended to a small branch of Bound 

 Creek near the highland. Though, this was not a bad breeding 

 area ditches w^ere nevertheless cut to make the place entirely safe, 

 and the drainage scheme works well. West of the small creek 

 already referred to, to the Pennsylvania Railroad at the edge of 

 the highland is a low cat-tail marsh, more or less flooded by the 

 tides from both Bound and Maple Creeks and with killies in 

 every open pool. No mosquitO' larvae were ever found and it is 

 believed that they cannot breed here. 



The next block west of the Central Railroad is between Maple 

 Creek and the Peddie street sewer, and extends to a wide ditch 

 that runs from Maple Creek to, but not into, the Peddie street 

 sewer. The ditch is bulkheaded from the sewer, hence really 

 forms a branch of Maple Creek. This territory contained a 

 number of bad breeding places which were all drained and the 

 ditches now work well. 



West O'f the wide ditch and extending to the Pennsylvania 

 Railroad the area is covered with cat-tails, and all the pools are 

 full of fish. It was deemed desirable, however, to make another 

 connection between the wide ditch and Maple Creek tO' give the 

 fish a better chance tO' get in and out of the pools with connect- 

 ing' ditches. It is always possible that an unusual tide or very 

 heavy storm may carry, water almost anywhere on this low marsh 

 and if any depressions not readily noticeable are filled in this 

 w^ay, it is desirable to have the killies present to^ go^ in with the 

 water. In all cases, therefore, it has been kept in mind to facili- 

 tate the running of fish and their ready entrance into depressed 

 areas. 



There remains now the stretch west of the Central Railroad, 

 extending between the Peddie street sewer and the Lehigh Val- 

 ley Railroad, to the highland. These lateral boundaries run 



