5 
has also repinned, and when necessary reset, part of the old 
collection—the Dlattidae among the Orthoptera and the 
Thynnidae among the Aculeate Hymenoptera. A great deal 
of time was also expended upon the setting and labelling of 
the material, especially the Asc/dae and the E-mpidae, for the 
Professor’s memoir on Predaceous Insects. Mr. Hamm has 
also arranged the examples of captors and their prey in such 
a manner as to illustrate the paper. He was also much 
occupied in printing labels for many groups of the recent 
accessions. 
The long list of catalogued accessions at the end of this 
Report indicates the amount and kind of work which has 
occupied almost the whole of Mr. J. Collins’s time. Probably 
the chief labour was that involved in printing the names and 
data for Colonel Yerbury’s splendid donation to the collection 
of British flies; and in printing the data for Mr. H. St. John K. 
Donisthorpe’s fine gift of British Coleoptera. A large amount 
of work was also expended upon the Rev. K. St. Aubyn 
Rogers’s donation of British East African butterflies, which 
were “set” in London. In addition to this kind of work, the 
extent of which can be estimated by a study of the additions 
to the collections, Mr. Collins and Mr. Hamm repapered 
a number of the old cabinet drawers, Mr. Collins renewed the 
spirit in the parts of the collection thus preserved, carefully 
arranged for exhibition in the corridor two sets of butterflies 
from the Potaro River, and gave much help to Commander 
Walker in preparing the British Collection of Coleoptera for 
rearrangement. 
5. Work on the Collections of Orthoptera. 
The following report has been written by Mr. R. Shel- 
ford, M.A.:— 
Work has been continued on the arrangement of the 
Blattidae, and the collection now includes 730 species, of 
which nearly 500 have been determined and described ; 133 
specimens are types. Three memoirs on the group have 
