My notes on the butterflies of Ceylon were published in "Spolia Zeylanica" in 1918-19, and Dr. Pearson, the Director of the Colombo Museum, suggested that they should be revised and issued as a Museum publication. Since then I have spent two years in England, and have been able to examine the collections in the British Museum (Natural History), and to consult many books which were not available in Ceylon, with the result that the greater portion of the ...
