( vi ) 



Mr. Hugh Main and Mr. Albert Harrison exhibited a 

 long series of Colias edusa, with vav. helice (bred from one $ 

 helice sent by Dr. T. A. Chapman from the South of France), 

 to show the proportion of type and variety obtained. The 

 percentage worked out as follows : — 



Total specimens : $ $ = 79 . . . 53% 



type: $ ?. = 19] . . . 



71 

 var.: $ ? = 52 J . . . 



150 100 



Of the $ ? type,= 19 . . . 27% 

 variety, = 52 . . . 73% 



71 100 



They also showed the results of similar experiments with 

 Amphidasys hetularia, bred from a $ var. doubledayaria, 

 and a type $ taken in cop. at Woodford, Essex, in 1903, 

 as follows : — 



Of the 43 6 6 22 = 51% = type, following the $ parent. 



21 = 49% = var. „ 6 „ 



Of the 01 $ ? 35 = 57% = type, following the ? parent. 



26 = 43% = var. „ 6 » 



As the result of " assembling" at Woodford, in June 1904, 

 it was found that : 17 = $ type = 63% 



10 = var. doubledayaria =37% 



27 100 



Mr. E. A. E. Priske exhibited a specimen of Ilelops striatus, 

 with a photograph, showing an abnormal formation of the 



