Having generally reviewed the question of injury to health I now come to our own experiments. I first made inquiry into the strength of tea, as commonly consumed, and found that the usual quantity of black tea added was about eight grammes to the 600 cubic centimetres of boiling water. I next approached two well-known firms who kindly supplied me with samples of pure unmixed Indian, Ceylon and China teas. Eight grammes of each sample were weighed out and were then infused in a tea-pot for five minutes with 600 cubic centimetres of boiling distilled water. At the end of five minutes the infusion was poured off and analysed for the percentage of extract, alkaloid, and tannin, and the following tables show figures for the Indian, Ceylon and China teas respectively. TABLE E. ANALYSIS OF INDIAN TEAS. (Infusion of 8 grammes with 600 cc of boiling distilled water for 5 minutes.) Wholesale Proportion Price Per Per Per of tannin No. Description and without cent. cent. cent. corresponding District. duty Extract. Alkaloid. Tannin. to 2·8 per lb. per cent. Alkaloid. 1 Orange Pekoe, 1/10 24·75 3·11 6·87 6·18 Deamoolie, Assam 2 Broken Orange Pekoe, 1/10 28·87 3·07 9·45 8·61 Powai, Assam 3 Orange Pekoe, Tara, 2/6 26·62 3·32 7·55 6·36 Assam 4 Pekoe, SS/U 1/4 21·75 1·86 5·42 8·16 Darjeeling 5 Fannings Badulipar, 9d. 30·37 3·30 10·46 8·87 Assam 6 Pekoe, Singlo, Assam 9d. 27·37 2·79 9·87 9·90 7 Pekoe, Rungamuttee, 7d. 23·25 2·70 5·35 5·55 Sylhet 8 Pekoe, Assam 6³⁄₄d. 27·90 2·86 7·26 7·11 9 Broken Orange 1/- 30·60 3·60 7·90 6·14 Pekoe, Assam 10 Broken Orange 1/9¹⁄₂ 25·90 2·62 8·92 9·53 Pekoe, Assam 11 Broken Orange 7³⁄₄d. 29·10 3·20 7·34 6·42 Pekoe, Sylhet 12 Orange Pekoe, 7¹⁄₂d. 27·90 2·61 8·72 9·35 Assam 13 Pekoe, Sylhet 5¹⁄₄d. 24·18 2·70 6·40 6·64 14 Broken Pekoe, 10d. 23·20 2·41 7·15 8·31 Darjeeling 15 Pekoe, Darjeeling 6¹⁄₂d. 21·92 2·21 5·72 7·25 16 Pekoe, Dooars 6d. 25·08 2·92 7·20 6·90 17 Broken Pekoe, 7d. 25·65 3·14 6·52 5·81 Dooars 18 Orange Pekoe, 6¹⁄₂d. 25·53 2·62 5·70 6·09 Cachar TABLE F. ANALYSIS OF CEYLON TEAS. (Infusion of 8 grammes with 600 cc of boiling distilled water for 5 minutes.)