“ 
20 H. C. RUSSELL. 
July 1. 4—A Cyclonic Storm or Tornado in the Gwydir District, 
, By H. C. Russell, B.A., C.M.G., F.R.S. 
5—Preparations now being made in Sydney Observatory 
for the Photographic chart of the Heavens. By 
H. C. Russell, B.A., C.M.G., F.R.S. 
Aug. 5. 6—A contribution to the Microscopic Structure of some 
Australian Rocks. By Rev. J. Milne Curran, f.«¢.s. 
Sept.2. 7—Ona Wave-propelled Vessel. By Lawrence Hargrave. 
8—Notes on a spontaneous disease among Australian 
Rabbits. By M. Adrien Loir. . 
9—Notes on some Celestial Photographs recently taken 
at Sydney Observatory. By H. C. Russell, B.a., 
C.M.G., F.R.S. 
Oct. 7. 10—Notes on the Use, Construction, and Cost of Service 
Reservoirs in New South Wales. By C. W. Darley, 
M. Inst. C.E. 
Nov.4. 11—On the constitution of the Sugar Series. By W. M. 
Hamlet, F.C.s., F.1.C. 
12—Artesian Water in New South Wales, (Preliminary 
Notes). By Prof.T. W. Edgeworth David, B.A., ¥F.G.s. 
Dec. 2. 13—Notes on the rate of growth of some Australian trees. 
By H. C. Russell, B.4., C.M.G., F.R.S. 
14—On Kaolinite from the Hawkesbury Sandstone. By 
Henry G. Smith. Communicated by J. H. Maiden, 
Puls. HC. 8- 
15—On some New South Wales and other Minerals, 
(Note No. 6.) By Prof, Liversidge, M.a., F.R.S. 
9) 
July 1. 
Sept. 2. 16—Some Folk-songs and Myths from Samoa, translated 
OG. 7: by the Rev. G. Pratt, with introduction and 
Dec. 2. Notes by John Fraser, LL.D. 
Exhibits at General Monthly Meetings : 
1891. 
June 3—Demonstration of a new machine.for use in explaining 
the nature of such waves as .those of sound.: By 
Prof. Anderson Stuart, M.D. — 
