SCENTS 
491 
In 1878 Fritz Muller followed this up with an extremely 
interesting communication to the Entomological Society of London, 1 
dealing chiefly with the scents actually found by him in the field, 
scents often associated with the special structures referred to. 
Mr. J. Wood-Mason, in 1886, published an account of the results 
of some of his observations in Cachar (Assam). 2 
Dr. E. A. Dixey, F.B.S., took up the study where Fritz Muller 
left it, and has been for some years engaged in investigating the 
anatomical structures connected with the production and distribution 
of the scents, devoting especial attention to the Pierinae . He gave 
the scientific world the first instalment of his results in his able 
Presidential Address to the Entomological Society, in January, 1910. 3 
Entomologists have been long looking forward to the publication of 
his researches, and it is to be hoped that before very long the 
complete work will see the light. 
Dr. Dixey’s first field observations appear to have been made in 
1899. Four years later, at Mortehoe, shortly before I sailed for 
India, he called my attention to the strong and distinct scent of 
Ganoris napi, Linn., closely resembling that of the Lemon Verbena, 
Lippia (Aloysio) citriodora} 
We made some joint observations that summer which I repeated 
and amplified the next year. Dr. Dixey gave a detailed and very 
lucid account of these early observations to the Entomological Society, 
an account that will well repay perusal. 5 Meanwhile, at Dr. Dixey’s 
request, I had made a few observations on Indian butterflies in 
1903-4. 6 It is curious that to this day so few persons are practically 
acquainted with the scent of the Green-veined White. When, at 
the Brussels Conference, in 1910, I caught a male G. napi in the 
beautiful garden of the Congo Museum, and demonstrated the scent 
to half a dozen entomologists present, none of these gentlemen had 
perceived the scent before, though at least one of them was a very 
eminent observer. 
1 “ Notes on Brazilian Entomology,” Trans . Ent. Soc. Land ., 1878, p. 211. 
2 “ The Bhopalocera of Cachar,” by J. Wood-Mason and L. de Nic6ville. Journal 
Asiatic Society of Bengal, vol. xv., 1886, pp. 843-393. It is stated on p. 344 that this 
paper was written in 1881, but its publication was delayed. The insects were taken 
“ between March 26th and October 4th,” but the year is not given. 
3 Proc. Ent. Soc. Lond ., 1909, p. Ixxxiii. 
4 See A. Weismann, “ The Evolution Theory,” 1904, translated from Second 
German Edition, 1904, pp. 217, 218. Also Barrett’s British Lepidoptera, 1893, vol. i. 
p. 26; also Standfuss, Handbuch derpaldarktischen Gross-Schmetterlinge, 1896, p. 108. 
5 Proc. Ent. Soc. Lond., 1904, pp. lvi.-lx. See also Longstaff, Entom. Month. 
Mag., 1905, pp. 112-115. 
6 Longstaff, Trans. Ent. Soc. Lond., 1905, pp. 136-138. 
