Vegetable Oils and Fats 



367 



The cold-pressed oil of a pale yellow colour is known as " White " tung oil ; the hot-pressed, 

 much darker, as " Black " tung oil. In China and Japan the oil is used as a preservative for 

 coating timber, as a lubricant, and for illumination. 



Hemp Seed Oil is prepared from the fruits of Cannabis sativa, a plant of thenettle order. 

 It is grown in Russia and Germany, in North America, in Egypt and other parts of Africa, 

 also in Central Asia. The supply of seed for oil is principally European. The freshly prepared 

 oil is greenish-yellow, with a peculiar taste and smell. 



Walnut Oil is obtained from the kernels of the common Walnut tree, Juglans regia. - The 

 seeds give about forty to forty-five per cent., of oil. Walnut oil dries quicker than linseed, 

 and is used as a medium for paints. Fresh cold-pressed oil is suitable for edible purposes. 



Maw or Poppy Oil is derived from the seeds of the Opium Poppy, Papaver somniferum, a 

 herbaceous annual cultivated in India, Persia, Asia -Minor, and elsewhere for the sake of the 

 opium extract. It is grown in the north of France and in Germany, where two varieties with 

 black and white seeds are recognised ; the white yields the better oil, and the black is said to 

 give a better return. Some of the oil pressed in the north of France is used for mixing with 

 artists' paints and is sun- bleached by exposure in shallow troughs ; cold-pressed oil is also 

 prepared as a table or cooking oil. The darker-coloured oil is used for burning or for conversion 

 into soap. 



Safflower Oil is obtained from the seeds of Carthamus tinctorius, a plant belonging to 

 the order Compositae, and is cultivated in India, Egypt, and China. 



A WEST INDIAN PALM BEACH 



