REPORT OX MOSQUITOES. 481 



i:)ond with swampy, overgrown borders just above the river level 

 and likely at any time to be flooded bv extra high water. Three 

 species of wrigglers were found here, including the malaria 

 carrying Anopheles and there is breeding area here to supply 

 the entire neighborhood with annoyance and disease. This place 

 can be relieved by draining into the river; but as neglect of the 

 ditches might result in a recurrence of the trouble, filling would 

 be better. 



There are several points along the Gold Run Creek where the 

 water becomes sluggish and almost stagnant at times, and in 

 some of these places Anopheles may breed. Periodic disinfection 

 with some one of the cheaper cresol preparations will afford a 

 good measure of relief here, if the rapidity of the flow cannot be 

 increased or the run completely abolished. 



There is a swampy area near Boudinot Street close to the 

 school building in which Culex pipiens, the common house mos- 

 quito, breeds continuously. June 9th, eleven Qgg boats were 

 counted from one point and the pool was already full of wrig- 

 glers. During July another brood was noted and August 4th, 

 there was yet another swarm of youngsters. This place may 

 best be cured by filling, though it is also susceptible of almost or 

 quite complete drainage. 



June 4th, the pond near Cadwallader Park was very low and 

 mosquito larvje were abundant in the shallow edges among the 

 thick vegetation that prevented the access of fish and other nat- 

 ural enemies. The edges of this pond should be trimmed out, 

 deepened and cleaned up, that these breeding shelters may dis- 

 appear. 



Opposite this pond is a swamp area where the malaria carry- 

 ing Anopheles breed more abundantly than at any place in or 

 near the city. This is the pest hole for malaria breeders and it 

 should be drained if at all possible. From such examination as 

 has been made, it seems quite feasible to lay the entire area bare 

 and thus abolish the chief source of the disease. 



In the Riverview Cemetery there is one large stagnant pool 

 which in June contained larvae enough for mosquitoes to annoy 

 the inhabitants of the whole of Trenton. This place should be 

 filled. 



The swampy territory lying between Trenton and Bordentown 

 was investigated June 30th, and July ist and 2nd. The larger 

 parts of the swamp were flooded and are apparently safe. In 

 small woodland areas and fields, larvae were found swarming in 

 temporarv pools caused bv the rain. Adults also were abundant ; 

 hut these as well as the larv?e were Culex sylvestris, a species 



