344 



' Notes on Soil Physics, with special reference to the land recently resumed 

 tor closer settlement at Tamworth, New South Wales (April, 1909),'* by J. F. Campbell, 

 L.S., is by a well-known observer, and valuable contributions to the discussion were 

 made by F. B. Guthrie and R. H. Cambage. (See The Surveyor, Sydney, XXII, 75-85, 

 1909.) 



For a " Note on the relation between the Geological Formation and the Vegetation 

 which grows upon it," see Maiden's " Forest Flora of New South Wales," Part 47, p. 138 

 (1912). This includes valuable observations by E. C. Andrews at p. 139. 



Dr. H. I. Jensen has outlined the relationship of soils to the underlying geological 

 formations, and also the principles which govern the dependence of the forest flora on 

 geological formations in " The Soils of New South Wales," Sydney, Department of 

 Agriculture, 1914 (199 pp., royal 8vo., with many maps and illustrations). It is, 

 indeed, a valuable text-book, and chapter XX on " Native flora as a guide to soil 

 fertility " is of special use to us in the present connection. He acknowledges his 

 indebtedness to the writings of Mr. R. H. Cambage, and also refers to a paper on a 

 calciphile flora on the lower slopes of the Kurrajong Range near Richmond, by W. M. 

 Carne in Proc. Linn. Soc, N.S.W., XXXV, 849, 1910. He also refers to the soil types 

 of the Cobar-Nyngan flora (F. B. Haviland, ib. XXXVI, 507, 1911). Dr. Jensen freely 

 refers to Eucalypts in his work. 



In a paper by H. G. Smith " On the essential oil of E. Smithii from various 

 forms of growth" (Journ. Roy. Soc., N.S.W., XLIX, 158, 1915 (with photos.)), the 

 author speaks chiefly of the natural growth of the species at Hill Top, New South Wales 

 (altitude 2,031 feet), and also of a cultivated plant at Marrickville, near Sydney, 

 practically at sea-level. 



Mr. E. Cheel {Proc. Roy. Soc, N.S.W., L, xxiv, 1916) made comparative sowings 



of E. Smithii at Hill Top and Ashfield (near Sydney). The soil at Ashfield was rich 



and the plant flourished. After giving an account of the growth of the seedlings he 

 concludes — 



" It will be seen from the above that the rate of growth in the ordinary soil at Hill Top is very rjoor 

 indeed, and although the species is a native of Hill Top and the surrounding district, it will only thrive in 

 rich patches of soil such as is found at Mr. D. Chalker s at Box Knob, and in the deep gullies with rich 

 soil, as well as at Mount Colo, about 6J miles from Hill Top and near Mount Jellore, where there are patches 

 of fairly rich soil, probably of volcanic origin." 



Bulletin No. 14 of the Forestry Commission of New South Wales (1920) entitled 

 " The Botany of the Pilliga Scrub, New South Wales," by J. H. Maiden, J. Burton 

 Cleland and Gordon Burrow, owes its value to the subdivision of the area by the two 

 last authors into areas based on soils and plant-associations. The distribution of the 

 Eucalypts is given. Dr. Jensen had in the year 1912 published an important paper 

 on the soils of the Pilliga Scrub, and he had noted the Eucalypts. Only a very small 

 edition of it was published. 



