. Contributions from the Hull Botanical Laboratory. Plants. 22' BOTAXICAL GAZETTE MARCH TABLE II Effect of alkali carbonates on oxidation of pyrogallol by powdered healthy apple bark; temperature °c. Time or BEADING NO BARK Bark K,COj NaaCO, LiaCOi Check K,C(V Na,CoT Li,CO, June 13 1 3° 1 45 2. 00 215 2. 30 2-45 3 00 3-IS 3 3° 3-45 4 00 4-15 4 30 June 14 0 00 0 55 i-35 i-75 3 °5 3-17 3-17 1 13 i-55 215 2-54 2 .60 0 54 2. 24 2-34 2-55 2-57 2-75 O. 14 O


. Contributions from the Hull Botanical Laboratory. Plants. 22' BOTAXICAL GAZETTE MARCH TABLE II Effect of alkali carbonates on oxidation of pyrogallol by powdered healthy apple bark; temperature °c. Time or BEADING NO BARK Bark K,COj NaaCO, LiaCOi Check K,C(V Na,CoT Li,CO, June 13 1 3° 1 45 2. 00 215 2. 30 2-45 3 00 3-IS 3 3° 3-45 4 00 4-15 4 30 June 14 0 00 0 55 i-35 i-75 3 °5 3-17 3-17 1 13 i-55 215 2-54 2 .60 0 54 2. 24 2-34 2-55 2-57 2-75 O. 14 O. 19 0. 24 0 54 1. 29 O O O O O I I 1 T I I I 2 2 OO OS 48 75 93 16 33 44 63 79 87 93 08 7° 0 00 0. 10 1-52 2. 19 1 23 1-33 i-74 1 93 1 99 2. 22 Fig. 2.—Effect of K2C03 on oxidation of pyrogallol, with and without bark (healthy): A, K2C03+bark and pyrogallol; B, K2COj+pyrogallol; C, control (bark and pyrogallol).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hull Botanical Laboratory. [Chicago : University of Chicago Press


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectplants, bookyear1895