14 
Sir S. S. Saunders. He has also almost finished working out 
the large collection of Majorcan, Spanish and E. Pyrenean 
Hymenoptera Aculeata made in 1gor, and has published an 
account of the small collection of Aculeates from Tenerife and 
Madeira (Trans. Ent. Soc., 1903, p. 207); kind aid was also 
afforded by Monsieur Auguste Forel of Morges, who named 
the Madeiran ants submitted to him for the Hope Department 
by Mr. Edward Saunders. The Hemiptera, in the last two 
collections, have also been kindly named by Mr. Saunders. 
The Majorcan Aculeata and Hemiptera, when completely 
worked out, will be published as a most interesting paper 
throwing great light upon the comparatively neglected 
Balearic insect fauna. 
The experimental inquiry into the struggle for existence 
during the pupal stage of Vanessidae, begun in 1898, and 
continued in 1899, was resumed by Miss M. E. Notley during 
the past summer, aided by a grant from the Government Grant 
Committee of the Royal Society. While waiting for material 
in the early part of the unusually backward season Miss Notley 
began an investigation into the influence of darkness and light 
upon the behaviour of caterpillars. This work, and the first 
portion of that upon the pupae, was undertaken here, the larvae 
being reared in the Department and the pupae exposed on 
trees, hedges, fences and nettle-stems in the north of Oxford. 
Miss Cora B. Sanders of Lady Margaret Hall took the 
keenest interest in the whole of the work done in Oxford, and 
at all times rendered the most efficient assistance. During 
the Long Vacation Miss Notley continued the inquiry at 
St. Helens, Isle of Wight. The whole of the results obtained 
in 1898, 1899 and 1903 will be ready for publication in 
a few weeks. 
Mr. R. Shelford’s important paper “On Some Mimetic Insects 
and Spiders from Borneo and Singapore” (Proc. Zool. Soc., 
1902, Vol. II, p. 230), although belonging to the publications 
of the previous year, did not appear until 1903. Almost the 
whole of the large amount of material upon which this memoir 
is based has been placed by the generosity of the author 
