148 ENTOMOLOGICAL NEWS [May, '20 



be called such, in Prof. Riley's interesting paper. The author realizes 

 this but is strongly of the opinion that vision is the important factor, 

 altho moisture also may have exerted an influence on their responses. 



Prof. Riley's descriptions of the physical conditions surrounding the 

 habitats of the insects and the photographs accompanying the papers 

 help the reader to visualize the conditions under which the observations 

 and experiments were made and are of considerable value for compara- 

 tive purposes to other workers in animal behavior. In the entire paper 

 the experiments are reported in some detail and the conclusions discussed 

 at length, furthermore the observations are checked up and compared 

 with those of other writers in the same field. The details are of consider- 

 able interest and value as is the entire paper, moreover such details are 

 essential to a complete presentation of behavior studies. A bibliography 

 of 18 titles accompanies the paper. — Harry B. Weiss, New Brunswick, 

 New Jersey. 



Obituary 



Lord Walsingham. 



Thomas de Grey, sixth Baron Walsingham, the great 

 authority on the Microlepidoptera of the world, died on 

 December 3, 1919, as the result of heart-failure, following 

 pleurisy, due to a chill contracted in connection with going 

 to Cambridge for the installation of Mr. Balfour as chancel- 

 lor of the University. From obituary notices in The Ento- 

 mologist's Monthly Magazine for February (with portrait) 

 and The Entomologist for January, we summarize as follows: 

 He was born in Mayfair, London, July 29, 1843, went to Eton 

 in 1856, and to Trinity College, Cambridge, in i860. The Uni- 

 versity made him B. A. in 1865, M. A. in 1870 and High 

 Steward and LL. D., in 1891. He was a member of the House 

 of Commons for West Norfolk, 1865- 1870, succeeding to 

 the title and estates of his father in the latter year. He was 

 appointed a Trustee of the British Museum in 1876 and to it 

 he gave his entomological library and collections in 19 10. 

 These consisted very largely of Lepidoptera, both imagines 

 and larvae, especially of the Microlepidoptera. 



He must have collected more than 50,000 specimens of Microlepidoptera 

 in England, France, Monte Carlo, Italy, Spain, Sicily, Corfu, Germany, 

 Austria, iXlgeria, Morocco, the Canaries, California and Oregon, Jamaica, 



