1 64 First Report on Economic Zoology. 
3. LOCUST PLAGUES IN THE SUDAN. 
CORRESPONDENCE AND REPORT PREPARED FOR THE 
FOREIGN OFFICE. 
Sudan Government, 
Civil Secretary’s Office, Cairo, 
27i(Z October , 1901. 
To The Director, 
Natural History Museum, 
Cromwell Road, S.W. 
Dear Sir, — I wrote to you in August last asking for suck infor- 
mation as you could kindly give me about the different species of locusts, 
the means of distinguishing them, and their habits. I am sending you by 
this mail a proof copy of the instructions that have been drawn up for the 
use of officers in the administration of the Sudan, in whicli it is proposed 
to include your notes. 
Any remarks you might think fit to make would be of great interest, 
as the instructions will not be printed until your notes have been received 
and included. 
These notes are being published with the shortest possible delay, and I 
should like if possible to have them circulated by the beginning of next 
month. I should, therefore, be very much obliged to you if you could let 
me have your notes and remarks as soon as possible. 
I must apologise for the trouble I am giving you, but the question of 
the destruction of locusts is so important in the Sudan that I feel it my 
duty to collect as much information as I possibly can before publishing 
the notes. 
I remain, etc., 
(Signed) Gleichen, 
Assistant Civil Secretary and Sudan Agent , Cairo. 
British Museum (Nat. Hist.), 
Cromwell Road, S.W., 
12tli October , 1901. 
To The Civil Secretary, 
Sudan Government, Cairo. 
Sir, — I am desired by the Director to acknowledge receipt of Count 
Gleiehen’s letter of the 2nd inst., enclosing proof of printed instructions for 
the use of officers in the administration of the Sudan, with regard to the 
destruction of locusts. 
A full reply thereto will be sent as soon as possible. 
I have the honour to he, etc., 
(Signed) C. E. Fagan, Assistant Secretary. 
