THE AUSTRALIAN NATURALIST, 75 
the leadership of Mr. A. A. Hamilton, and formed a most 
interesting finale to his Presidential Address. 
Whole day outings were held to MHeatheote and 
Woodford, afternoon outings to La Perouse, Balmoral, 
Oatley, Brighton-le-Sands, Hornsby, Lane Cove; and we 
have to thank the ladies and gentlemen who kindly 
acted as leaders. Three Members’ Nights were held dur- 
ing the year, and proved a great attraction, ‘some fine 
original work being the result. 
Lectures were delivered by the following, and we 
take this opportunity of again thanking the lecturers for 
their kind services:—‘‘Shore-line Vegetation,’’ by Mr. A. — 
A. Hamilton; “‘The Use of Photography as an Adjunct 
to Nature Study,’’ by Mr. F. W. Carpenter; ‘‘ Trawling 
in Peacetime and in War,’’ by Mr. D. G. Stead; ‘‘Some 
Essential Oils from Australian Plants,’? by Mr. H. G. 
Smith; ‘‘Flies,’’ by Mr. W. W. Froggatt, F.E.S.; ‘‘A 
~ Naturalist in South Africa,’ by Mr. A. §. Le Souef. 
The average attendance at the meetings was 33. 
Owing to the courtesy of the officers of the Depart- 
ment of HEducation, our library has been placed in the 
Assembly Room, and Mrs. W. M. Carne has kindly under- 
taken the office of librarian,«with Mr. N. Hewison to as- 
sist her, and the members will now be able to exchange 
books at the monthly meetings of the Society. 
Our thanks are tendered to our Honorary Editor, 
Mr. Thomas Steel, F.U.8., for his unremitting care of the 
Australian Naturalist (our quarterly review), and also 
Mr. C. J. White, Honorary Lanternist, for his many kind 
acts and the great assistance he has been to the lecturers, 
performed at times at inconvenience to himself. 
The thanks of the Society are also due to the Minis- 
ter of Education, and his Chief Secretary, Mr. P. Board, 
for the free use of this fine room. 
E. S. Epwanps, NATL, 
POL LIN ATION OF SOME AUSTRALIAN PLANTS. 
By A. G. Hamilton. 
(Read 5th November, 1918.) 
Darwin showed that it is of great importance to the 
plant as a species, not as an individual, tha’ it should be 
