quality soils; about 7 per cent, were first class, 10 per cent, second class, and the remainder poor. Of the easy access soils of the North Island only 15 per cent, were good first class soils and 10 per cent, second class. Of the best lands only one-tenth could be farmed without the use of fertilisers. Information on the chemical composition of the different soils was available, and with the aid of his maps Dr. Grange showed the areas where liming was required and the degree of liming necessary. Similar maps could be prepared for other mineral constituents of the soil. After explaining the soil fertility map, Dr. Grange detailed the uses that could be made of such maps during rehabilitation and in problems of land utilisation and administration. A series of lantern slides showing soil profiles and the results of breaking lower class soils were shown.