209 Feb. 9 Young trees are planted close together and sap is drawn at an early age, as they get larger they are thinned out. Willx says sometimes the leaf fall is pretty well synchronized but that soon the trees are decked in fresh green. We also passed through old tin mining dumps near K. L. Tin is mined by the "Placer" U.S term method. A jet of water is sprayed on the ore-bearing shale and the shale is carried down troughs into cross cleats. The tin lodges behind the cleats. The procedure is like "Placer" mining for gold in the U.S. Tin is a breakdown product of granite. In the hills are a few fertile valleys, the soil of which can withstand repeated plantings but in general the soil will take only 2 or 3 crops and then must be treated with fertilizer or slaked lime. There is much red laterite soil in Malaya. I learned that the population of Malaya is something over 6 million, and the country of is regarded as sparsely populated. See species account for observations on Draco. The Indian Crow was introduced in Klang about 60 years ago to control volatiles. The bird persists and is now considered somewhat of a pest.