42 INTROLUCTORT. 



" I have kept ten or eleven men working continuously in the 

 orchard all through the season. Nine of them going over the 

 trees and pulling off all the fruit they could find that was 

 infested Avith these worms, and others were picking them up 

 and carrying them in. The means that I used to destroy them 

 was to put them in a large boiler and boil them up, not trust- 

 ing to the hogs or anything else to eat them ; and I came to 

 the conclusion that that was the surest way of exterminating 

 them. 



"I have carried that out until the apples got large, and they 

 are now in the house. What the result will be. I don't know. 

 I have worked the bands very effectually, killing some days 

 thousands of larvtc. T never ke])t an accurate account.'' 



Mr. Cooke — " How many did the bats eat?" 



Mr. DeLong — " That is a question I do not know anything 

 about. T don't knoAV that I can give any further ideas. We 

 were working under the mode Dr. Cha])in spoke of, which I 

 think is most effectual." 



Mr. Cooke — "I merely wanted to call the attention of the con- 

 vention to the facts ; Avhen ^Fr. DeLong covered all of the win- 

 dows on the inside of the three story a])ide house (the ui)per 

 story is formed with a high roof, and he had to keep the mos- 

 quito bar over both ends), he inclosed ])robably five hundred 

 (oOO) bats. We know that a bat lives on insects, and it is 

 certain that the bats lived on the codlin moth, and of these 

 ls\x. DeLong was unable to give any account. He had placed 

 84,000 boxes in this house ; he neglected to say that he cleaned 

 the boxes before they were i>ut into the traj), and he got ten or 

 twelve larvfc in some of these boxes. He got over 15,000 

 moths, the largest capture ever made in this line of warfare, 

 for his Summer's work. 



"T was present on May 2U, 1882. at two o'clock r. m., and 

 on the covering of the top window, marked A, on Fig. 7, 

 one hundred and ten moths were cai)tured. Extended notice 

 is thus given in commendation of Mr. DeLong's ]iractical work 

 from the 15th of April to August 26th.'' 



NoTK. — On Fig. 7 it can be noticed that tlicrc is a S([Uare 

 cornice on gal)le of building; the bats could only get into this 

 cornice from inside: the covering of mosquito l>ar kept them 

 on the to]) floor, and as they appeared well fed during their 

 confinement of four months and a half it is presumed that 

 thev destrovcd a lai'uc nmnlicr of the codlin moths. 



