414 ON TICKS CAUSING A RELAPSING FEVER IN MAN. [ Apr. 27, 
April 27th, 1909. 
Prof. E, A. Mrncuin, M.A., Vice-President, 
in the Chair. 
The Secretary read the following report on the additions made 
to the Society’s Menagerie during the month of March 1909 :— 
The number of registered additions to the Society’s Menagerie 
during the month of March last was 157. Of these 96 were 
acquired by presentation, 21 by purchase, 28 were received on 
deposit, and 12 were born in the Gardens. 
The number of departures during the same period, by death 
and removals, was 135. 
Amongst the additions special attention may be directed to :-— 
One White-headed Ratel (Mellivora signata), from Sierra 
Leone, new to the Collection, deposited on March Ist. 
One Eland (Zaurotragus oryx) 5 , from South Africa, presented 
by Vice-Admiral Sir Percy Scott, K.C.V.O., on March 9th. 
One Eland (Zaurotragus oryx) 9, born in the Menagerie on 
March 17th. 
One Tasmanian Wolf (Zhylacinus cynocephalus) 2, from 
Tasmania, purchased on March 12th. 
Two King Birds of Paradise (Cicinnurus regius) 3 2, from 
New Guinea, purchased on March 23rd. 
One South-African Harrier (Cirews ranivorus), one Booted 
Eagle (Visaétus pennatus), and fifty-four Millipedes belonging 
to two species (Archispirostreptus pyrocephalus and A. cristulatus), 
from Port Elizabeth, presented by A. W. Guthrie, Esq., F.Z.S., 
on March 20th. 
Three Hercules Beetles (Dynastes hercules), from Dominica, 
new to the Collection, presented by T. Laurance Eve, Esq., on 
March 31st. 
Mr. H. F. McShane exhibited a series of lantern-slides of 
animals living in the Society’s Gardens. 
Prof. E. A. Minchin, M.A., V.P.Z.8S., exhibited living speci- 
mens of eggs, larve, and adults of the tick Ornithodoros monbata 
Murray. This tick lives in the mud floors of human habitations 
and encampments in many parts of Africa, and is the means of 
transmitting the spirochete which causes African Relapsing 
Fever (Spirocheta duttoni). The specimens shown were collected 
and sent home by Sir David Bruce, from Uganda, and were 
probably infected. 
Mr. R. H. Burne, F.Z.S., exhibited a series of specimens 
from the Museum of the Royal College of Surgeons, showing 
(1) the different mechanisms for the movement of the nictitating 
