=Export of Rubber.=—The Commercial Intelligence Officer of Southern Nigeria, in his report on the trade of the country for 1907, gives a table showing the rubber exported from Southern Nigerian ports from 1900 to 1907; but as these figures include large quantities of the product from Northern Nigeria, shipped through Southern Nigerian ports, they do not represent the output from the latter country alone. Until 1907 apparently no record of the Northern Nigerian rubber exported was kept, but in the year mentioned 1,187,588 lbs., valued at £91,074, were recorded as having passed the customs post of Northern Nigeria at Ida, on the Niger. The amounts, in tons, exported from the Southern Provinces alone were: 1907, 690; 1908, 545; 1909, 620; and from the whole of Nigeria from that time: 1910, 1,180; 1911, 966; 1912, 705; 1913, 510; 1914, no figures; 1915, 248; 1916, 396; 1917, 392; 1918, 157; 1919, 398. The rubber production of the country is to some extent controlled by the market price, which is at present very low (1921). =COPAL.=—Some quantity of a kind of copal resin is collected from _Cyanothyrsus oblongus_ (syn. _C. ogea_), and is exported under the name of “Ogea gum.” The quality appears to be similar to that obtained from the Gold Coast _Cyanothyrsus sp._, and which is sold under the name of “Accra copal.” Both are obtained in a fresh and a fossil state. Owing to the recent fall in the price of ogea gum, the collection of it has diminished, but there are said to be large quantities available which would be collected as soon as a better demand occurred. (See articles on “Copal Resins from British West Africa,” _Bull. Imp. Inst._, 1908, p. 245; and 1914, p. 218.) =COCOA.=—The good fortune which has recently attended the planters in West Africa, owing to a sudden demand for their cocoa, has encouraged them, especially to the north and north-east of Lagos, to make more extensive plantations. The climatic conditions in the Western Province, however, are not favourable, and the repeated failures of trees, due to the exhausting effect of the long dry seasons, give the plantations an irregular appearance. The trees in the plantations made at Agege, where many well-to-do planters have made farms, are stunted, and planted in too close proximity, mostly without permanent shade trees. In some instances the trees showed disease from the sapping of the bark juices occasioned by a Capsid, the species of which is as yet undetermined. The chief cause of their sterility and death seems, however, to be the unfavourable climatic conditions. In the direction of the Abeokuta-Ibadan boundary, better planting seems to have been done and permanent shade trees preserved.