111 . 
CONTENTS 
Page 
List of Officers ... ... ... ... ... ... ... ••• iv. 
List of Members ... ... ... ... ... ... ... ... v. 
Annual Report — 1918-1919 ... ... ... ... ... ... ... ix. 
Statement of Receipts and Expenditure ... ... ... ... ... x. 
Proceedings ... ♦... ... xi. 
List of Societies and Institutions whose publications have been received xiv. 
Constitution and Rules ... ... ... ... ... ... ... xvi. 
Papers : Mr. W. .1. Hancock (President) on kk /Science and- Civilisation " 1 
Professor Woolnough on " Physiographic dements of the Swan 
Coastal Plain ” t .. ... ... ... ... ... 15 
Mr. J. S. Battye on “ Causes which led to the Colonisation of 
Western Australia'" ... 21 
Hon. W. Kingsmill on “ Acclimatisation " 33 
Mr. W. A. Saw on “ Some aspects of town planning" ... 39 
Mr. A. R. L. Wright on k Houses in Western Australia " ... 62 
Mr. D. A. Herbert on “ The Western Australian Christmas 
Tree ” ... 72 
Professor A. I). Ross on ' k Light and the Ether " ... ... 89 
Dr. E. S. Simpson on “ Hisingerite " ... ... ... ... 95 
Index ... . . ... 98 
PLATES AND FIGURES. 
Page 
Prof , Woolnough' s Paper : 
Fig. 1. — Generalised Section of the Swan Coastal Plain 20 
Mr, W, A, Saw's Paper : 
Figs. 1 to 24. — Views illustrating matters relating to Town Planning 49-61 
Mr, Herbert's Pa/per : 
Fig. 1. — Section of stem ... ... ... ... ... ... ... 74 
Fig. 2. — Sections showing mode of growth 75 
Fig. 3. — Medullary rays and mucilage canal ... ... ... ... 76 
Fig. 4. — View of a tree 78 
Fig. 5. — A young root 79 
Fig. 6. — An old root 80 
Fig. 7. — Commencement of attack of a root on a root of Jacksonia ... 82 
Fig. 8. — Haustoriogen on a young root 83 
Fig. 9. — Haustoriogen on a larger root * 82 
Fig. 10. — Section of Haustoriogen ... ... ... ... ... ... 84 
Fig. 11. — Carrots attacked by haustoriogen 87 
Mr. .1, R. L. I! 'right's Paper: 
Plates 1, 2, 3, and 4. — Plans of Australian houses ... ... ... 71 
Professor Ross's Paper : 
Fig. 1. — Deviation of light 94 
