Assistance in working out the material of the Department. 
Commander Walker has given much kind help in many 
directions. He examined the vast collection of Siberian 
beetles collected by Herr von Rengarten, near Gorbitza in 
Transbaikalia, and presented by Dupre P. Lance, Esq., 
selected the series for the Department, and himself pinned 
and set large numbers of specimens; he has begun to arrange 
the British Coleoptera, and here too has repinned and reset 
hundreds of the old and delicate specimens. A well arranged, 
correctly named, and adequately large collection of British 
beetles is one of the greatest wants of the Department, and 
the University owes a corresponding debt to the distinguished 
student of insect-life who has undertaken this great task. 
Furthermore, Commander Walker has completed a census of 
the Hope Collection, the result of which will be found under 
a separate heading. He has also most kindly assisted the 
Professor on very many occasions, and has continually helped 
naturalists who have come to name their specimens or to 
study the collections. 
Since the early part of the year when Dr. Dixey gave much 
time to the library, he has, when in Oxford, devoted a great 
deal of labour to the incorporation in the collection of Pzerinae 
of the large accumulation of accessions. ‘This has involved 
a large amount of rearrangement. 
The Hope Department has also received very much 
generous assistance from eminent specialists in many coun- 
tries. 
The kindest help has been continually received from Mr. — 
Hamilton H. Druce, F.L.S., in the determination of obscure 
species of Lycaenidae and Hesperidae. 
The two pieces of work which have chiefly needed and 
received a large amount of help in many directions, have been 
the Burchell memoir, dealt with in the next section, and 
a paper, still unfinished, upon the enemies, principally the 
predaceous insect enemies, of insects. The following naturalists 
have kindly assisted in the respective groups in which they 
