THROUGH the Cultural Scientific Mission to China of the British Council, British men of science have learned of the great difficulties under which their Chinese colleagues are labouring to-day. Of the many obstacles to the pursuit of science in war-time China, not the least important is the scarcity of standard text- and reference books, and journals and reprints, which, equally with technical apparatus, are necessary for scientific teaching and research. The Natural Science Society of China (British Branch), through its president, Dr. S. P. Chu, and honorary secretary, Mr. P. M, Yap, is appealing for scientific and technological publications, which readers of Nature, either individually, or as organizations, can spare, to be sent to China. The great majority of Chinese scientific workers are accustomed to English texts and literature; indeed, many of them have obtained a part or the whole of their training in Great Britain, and the response to this appeal will be of significance, not merely as an expression of comradeship between British and Chinese scientific workers, but also as a constructive effort towards rehabilitating science in Free China. The British Council, 3 Hanover Street, London, W.1, has offered to receive on behalf of the Society such scientific literature as may be available; and it will be dispatched as opportunity offers to the Science Library of the Natural Science Society of China in Chungking.