Kentucky stems. Connecticut stems. Moisture 26.70 per cent. 13.47 per cent. Organic and volatile 60.18 “ “ 70.85 “ “ Ash 13.12 “ “ 15.68 “ “ The ash calculated to the original substance had the following composition: Kentucky stems. Connecticut stems. Phosphoric acid 0.67 per cent. 0.53 per cent. Potash 8.03 “ “ 6.41 “ “ It is thus seen that about half the ash of tobacco stems is composed of potash. The stalks of the tobacco have almost the same composition as the stems, but the percentage of ash is not quite so great. In three samples analyzed at the Connecticut station the percentages of ash found in the water-free substance were 6.64, 7.00, and 7.46 respectively. The pure ash of the stalks was found to have the following composition:[186] Description of samples. Constituents Cut Aug. 22. Cut Sept. 17. Silica 0.82 per cent. 0.57 per cent. Iron and aluminum oxids 1.38 “ “ 1.38 “ “ Lime 14.01 “ “ 16.58 “ “ Magnesia 6.64 “ “ 7.36 “ “ Potash 56.34 “ “ 54.46 “ “ Soda 1.28 “ “ 1.16 “ “ Sulfuric acid 8.06 “ “ 6.75 “ “ Phosphoric acid 6.37 “ “ 6.27 “ “ Chlorin 6.55 “ “ 7.05 “ “ ------ ------ 101.45 “ “ 101.58 “ “ Deduct oxygen = chlorin 1.45 “ “ 1.58 “ “ ------ ------ 100.00 “ “ 100.00 “ “ The leaves of the tobacco contain more ash than the stalks or stems, but the percentage of potash therein is less. In eighteen samples analyzed at the Colorado station the percentages of moisture in the leaf varied from 6.08 to 28.00, and those of ash from 22.60 to 28.00.[187] The percentages of potash in the ash varied from 15.20 to 26.30. In these data the carbon dioxid, sand, etc., are included, while in those quoted from the Connecticut station they were excluded.