101 



were all kept alive in cages for eggs. Large numbers of ova were 

 laid by these from the latter part of May till the end of June. The 

 resulting larvjB were fed on growing luxuriant food under natural 

 conditions of temperature. The rate of growth was very slow, and 

 it was not until the 29th of July (though possibly overlooked on 

 the 28th) that the first butterfly, a 9 , emerged. 



" On the same day the first second- brood wild female was 

 observed in the lane whence the stock had been procured. These 

 two specimens I am exhibiting this evening. 



" From the latter part of June till July 29th, the butterfly in a 

 wild state had become very scarce, though throughout May and till 

 the middle of June it was extremely common in the lanes. Except 

 perhaps a few worn examples it disappeared in July, and .in 1916 it 

 may be said that the second brood did not begin to emerge till the 

 end of that month. 



" By the end of July and in early August Dr. Perkins had 

 hundreds of larvas varying in size from those full grown or nearly 

 so to those still very small, or about in the second and third stages. 

 A few butterflies emerged from August 10th to August 17th, fcom 

 May or early June eggs, bat on August 10th most of them were 

 still in the larval stage and many not more than half grown, some 

 smaller still. On August 9th several pupated. Three butterflies 

 emerged from these pupae on October 1st to 3rd. One of them was 

 a cripple, but the other two which are rather small and peculiar 

 specimens are in the case, these were bred indoors. The pup;e are 

 dimorphic, a beautiful clear green or brown. 



" On September 12th and following days the butterfly was found 

 in great numbers in some of the lanes behmd Paignton, many of 

 the specimens being very fresh and perfect. About the same date 

 some of both sexes were bred from early August pupae. Some of 

 the males are exhibited to-night, but the females were put in cages 

 and wild males with them to obtain fertile eggs. Ova were laid by 

 these females till the end of the month but many of them were 

 destroyed by predaceous insects or bad weather, the last butterfly 

 dying about October 1st, after exposure to several nights of violent 

 rains. The first caterpillar emerged from these eggs on October 5th, 

 and half a dozen or more on the following morning. 



" On the 3rd of October the grass on which the eggs were laid 

 was dug up, potted, and placed in the open window of a loft. 



" The conclusions at which Dr. Perkins has arrived from his 

 observations and experiments during the present year are exceed- 



