ANNIVERSARY ADDRESS. TS 
by the purchase of back numbers, and we have accordingly pur- 
chased during the past year the back numbers of (1) Annales de 
Y Institut Pasteur ; (2) Journal of the Royal Asiatic Society of 
Great Britain and Ireland; (3) Memoirs of the Wernerian Natural 
History Society; (4) Monthly Notices of the Royal Astronomical 
Society; (5) Transactions of the Clinical Society; (6) Transactions 
of the Institution of Naval Architects ; and upon application we 
had presented to us back numbers of the following series: (1) 
Memoires of the Geological Survey of India, (Paleontologia 
Indica); (2) Reports of the Aéronautical Society of Great Britain; 
(3) Reports of the Commissioner of Indian Affairs, U.S.A. ; (4) 
Transactions of the Royal Historical Society. During the past 
year the Society has received the following donations :—239 
volumes, 1427 parts, 283 pamphlets, 1 map (mounted), 1 atlas of 
maps, 2 atlases and 30 loose meteorological charts, 7 hydro- 
graphic charts, 1 volume star photographs; total 1961 publications, 
During the past year eight general meetings have been held, the 
first was devoted to formal business and the President’s address, 
the other seven to usual business. Nineteen papers were read, 
or nearly three for each meeting. ‘The average attendance of 
members was 35:7, the greatest in recent years being 36°3 in 
1890, the lowest 21:6 in 1887. Visitors were not quite so numer- 
ous as in 1890 when the average was 3-7 ; last year it was 3. At 
four of the meetings we had instructive exhibits, some of which, 
from their importance and novelty and the work their preparation 
had involved might almost be called condensed essays on the 
subjects they illustrated, notably some by Prof. Anderson Stuart. 
Papers read before the Society last Session :— 
1891. 
May 6. 1—Presidential Address. By A. Leibius, PH.D., M.A., F.C.S. 
June3. 2—Notes on the large death-rate among Australian sheep 
in Country infected with Cumberland Disease or 
Splenic Fever. By M. Adrien Loir. 
July 1. 3—Compressed-air Flying Machines Nos. 13 and 14. By 
Lawrence Hargrave. 
