rendered by Dr. Rebel, and in the Micro-Lepidoptera by 

 Lord Walsingham and Mr. J. Hartley Durrant. 



The larger specimens have been reset, and the smaller 

 ones staged in the Department. 



4. TJie Pj'ont-Bacot Mendclian breeding Experiment on 

 Acid alia virgidaria. 



The authors of this important investigation, Mr. L. B. 

 Prout, F.E.S., and Mr. A. Bacot, F.E.S., have presented the 

 whole of the material to the Hope Department, where it can 

 be studied by all who are interested in the problems of 

 heredity. The material consists of between 5,oco and 6,000 

 specimens bred in ten generations from a cross between two 

 geographical races of the moth — the one a dark form from 

 the London district, the other white, from the south of France. 



The results, which '• were entirely negative so far as Men- 

 delian segregation is concerned," are recorded in the Pro- 

 ceedings of the Royal Society (B. Vol. 81 (1909), p. 133). 



Mimetic Butterflies from a patcJi of tropical Forest 

 near Entebbe. 

 Although it has not been possible to catalogue these speci- 

 mens, captured and presented by Mr. C. A. Wiggins, F.E.S., 

 in 1909, special mention must be made of them in this 

 Report. The captures of Danainae and Acraeinae in this 

 limited area, together with their Nymphaline and Papilionine 

 models taken on the same day, will, there is little doubt, 

 throw very much light on the problem of mimicry. 



5. TJie Sellon Collection of British Lepidoptera. 

 This fine collection, made by Mr. H. S. Sellon, was presented 

 by the mother and sisters of the late naturalist. It is contained 

 in three cabinets, which were safely transferred by road with 

 the Pascoe Collection. It is intended to place the rarest 

 specimens, after careful labelling, in the Hope Collection in 

 the Department, and to make the remainder available for 

 the study of the public. It is hoped by this means to help 

 in stimulating a general interest in the subject to which 

 Mr. Sellon was so deeply devoted. 



