STATE POMOLOGICAL SOCIETY. 59 



give rise to a new brood of worms I liave no data to determiue, but 

 as the vast niajorit}' of the worms remained unchanged until spring 

 it appears tliat practicall}' there is but one brood. That is to say, 

 if, indeed, there be a second brood, it is so small in number and be- 

 gins life so late in the season that its operations are of little moment 

 to the orchardist. 



Wintering over. I had three separate lots of worms. The first 

 consisted of those that I had been closely examining, which were 

 kept in a warm room in the farm-house until mid-October, when the 

 house was shut up for the winter, and the cocoons left there until 

 spring. About the first of May I carried twenty of these to Bucks- 

 port and kept them in a warm room until they transformed. I sup- 

 pose that the artificial heat to which they had been subjected would 

 hasten their development so much as to bring them through their 

 transformations before the time of apple blooming. It was therefore 

 a great surprise to find, May 28, that of eight of these worms that 

 da}' taken from their cocoons, only two had begun their transforma- 

 tion and reached the " pupa stage," the other six crawling about in 

 a livel}' way and afterwards constructing new cocoons for themselves. 

 It was not until June 16 that the first moth emerged from any of 

 the cocoons, and the remainder continued to emerge until July 15 

 or 20. 



The second lot received the same treatment as the first except 

 that it was not brought into the warm room in Bucksport till June. 

 These were all examined June 18 b}- opening the cocoons enough to 

 see the condition of their inmates. Out of fifty specimens, all but 

 three or four had reached the pupa stage and could no longer crawl 

 about. They were but little disturbed and most of them trans- 

 formed finally in July, one of them coming out as late as Juh' 27. 

 Two specimens found in larva state June 18, made new cocoons and 

 com[)leted their transformation between the 10th and 12th of Jul\' ; 

 they had originally gone into cocoon between August 9 aud 12. 



The worms belonging to these two lots made their original cocoons 

 between August 7th and 12th, and completed their transformation 

 between June 16th and Jul}^ 31st, notwithstanding their subjection 

 to artificial heat in the fall and spring. Their period of trausforraa- 

 tion thus averaged al)out eleven months. The most of them had 

 been obliged to form one or two extra cocoons, which may have 

 retarded their development somewhat, perhaps enough to counter- 



