58 AGRICULTURAL EXPERIMENT STATION. 



whitewashed, ventilation good. Here mosquitoes were found clinging to 

 those portions of the wall where the whitewash had peeled off. Cellars num- 

 ber 7 and 8 were very dry, cemented tioor, large stone foundation, thoroughly 

 whitewashed ; very few, not more than two dozen, insects were found in the 

 dark portions of both cellars. 



Cellar number 9, located on South Fourteenth street, was quite dry, 

 cemented floor, brick foundation, no whitewash, good ventilation. In a very 

 dark corner of that cellar, in the neighborhood of the water-meter, hundreds 

 of mosquitoes were found. 



Cellar number 10 is located on Somerset street. It was expected that 

 mosquitoes would be found there in large numbers, because the cellar was 

 very dark and afforded an ideal hiding place for the insects. The walls of 

 the foundations were built of large stones, not whitewashed, plain sand floor, 

 ventilation poor. Only about half a dozen insects were found. Upon closer 

 examination I could not find any place where the insects could find easy access 

 to the cellar, although my report on cellar number 15 will show a veritable 

 storehouse of hibernators, with no discernible access for the insect. 



Cellars numbered 11 and 12 are located on South Sixth street. Atmosphere 

 damp, brick foundation, no whitewash, plain sand floor, ventilation fairly good. 

 Mosquitoes were noticed in numbers on walls facing the yard, where moisture 

 slowly percolated through the porous bricks. On account of the constant use 

 of the front part of the cellar, where coal was stored, no mosquitoes were 

 found there. 



Cellars numbered 13 and 14 are located on upper Bank street. Cellar num- 

 ber 13 was dry, cemented floor, brick foundation, whitewashed, ventilation 

 good. Mosquitoes were found in a dark compartment of the cellar, but not 

 in numbers. Cellar number 14, however, was somewhat moist, and the insects 

 were found near the water-supply pipe. 



Cellar number 15 is located on Hamburg Place road. If every cellar in the 

 city of Newark harbored as many hibernating insects as this cellar did, there 

 would be no comfort for the citizens of that city ; they would have to take to 

 the hills to escape the horrible pest. To count the insects would be a herculean 

 task. Thousands upon" thousands decorated the naked brick walls, and the 

 pillars of masonry in the center were practically alive with them; an occur- 

 rence which I did not notice in other cellars, the mosquitoes usually clinging 

 only to those walls facing the street or a yard, but rarely to dividing walls in 

 a cellar. This unusual occurrence I might explain by the suggestion that the 

 insects were so numerous in a space of one hundred and twenty-five feet by 

 fifty that those arriving first selected and monopolized the outer walls, whereby 

 the late comers were compelled to make use of the inner walls and pillars. 

 This cellar is by no means a very damp one, yet there is considerable moisture 

 to be found at times, and large areas of swampy ground are in close proximity 

 to the building. It was puzzling to me, as well as to your Mr. Brehme, how 

 the insects could have gained access to the rooms, for there were no windows 

 broken nor apertures left for an entrance. I would suggest that this partic- 

 ular cellar be fumigated in the latter part of the summer to drive out whatever 

 insects are to be found therein, and the walls be thoroughly whitewashed. 



Cellars numbered 16 and 17 are located on Monmouth street. Cellar num- 

 ber 16 is very moist, ventilation good, brick foundation, not whitewashed, 

 partly cemented floor. The insects were found here in numbers on the wall 

 facing an alley ; but on the opposite side, on the wall dividing the cellars of a 

 double house, none were found In the other cellar of the double house the 

 insects were found just as numerous, also facing an alley. My supply of 

 experimental material was taken from these cellars, and the supply appeared 

 to be inexhaustible. Cellar number 17 is very dry, brick foundation, white- 

 washed, cemented floor. Very few mosquitoes were found in this cellar, albeit 

 located close to cellar number 16. I also examined a cellar in Elizabeth, as 

 per your instructions, and found, in a well-ventilated, partly whitewashed 

 cellar, a small number of mosquitoes. I was about to give up the task, as I 

 considered the place not a very favorable one for my investigation, when I 

 found, in a very dark portion of the cellar, a door leading to a dungeon-like 



