568 AGRICULTURAL EXPERIMENT STATION. 



through this swamp which will probably make matters worse 

 for a time, until the place is graded for building lots. 



A few bad places are to be found on Osborn Terrace near 

 Runyon Avenue. These are low lots into which w^ater drains 

 and lies for a long period, giving ample time for two or more 

 broods of pipiciis after a moderate rain. On i8th Street be- 

 tween Avon and Clinton Avenues are several bad swampy places 

 that breed many mosquitoes. Here filling seems to be the only 

 remed}^ unless, when i8th Street is sewered, the swamp is 

 drained into it. That would be the most practical measure if, 

 as I am informed, a sewer is contemplated in the near future. 



Along the West Newark branch of the Pennsylvania Railroad 

 freight line is a spring, the water from which runs along the 

 west side of the track in a poorly constructed gutter. The drain 

 is irregular, there are many stoppages forming pools and here 

 the insects breed continually. Mr. Brehme reports at least ten 

 inspections and each time every pool was packed full of larvae 

 of C. pipiens and restnons. If this gutter were cleaned and prop- 

 erly graded it would carry the water perfectly and would render 

 breeding impossible. 



A very bad place for C. pipiens is on the north side of the 

 Newark branch of the Central Railroad just west of Brill 

 Street. Here an old ditch was cut off by the railroad, leaving a 

 trench about 150 feet long in which water remains at almost all 

 times and where mosquito larvae develop almost continuously. 

 Only filling will answer here, to bring the ditch to the general 

 surface level. 



Opposite the trolley barns of the Newark and New York line 

 on East Eerr57- Street, is a bad breeding hole for C. pipiens; but 

 that is in course of being filled and no breeding will go on there 

 in 1905. 



It is not pretended that the above is a complete record of all 

 places within the Newark City limits where mosquitoes breed. 

 But it does enumerate the larg-er areas from which great numbers 

 spread out over a considerable vicinage. It shows how some of 

 the breeding places were formed, how others have been kept up 

 and how, in normal course, a lar^e percentage are in process of 

 elimination. It indicates also what may be done to hasten a 

 better condition and that a little carelessness or lack of appre- 

 ciation of consequences on the part of the municipal body charged 

 with the care of parks, may result in materially impairing the 

 comfort of those resorting to them for recreation. 



This part of the problem is fully within the power of the 

 Board of Health and will not, I am sure, long lack abatement. 



