FIG. r. The apparatus used in testing the carbon dioxide absorption by coconut , photographed from theSE. on May 28, at 5 p.m., during the test of leaf 4• FIG. 2. A photograph of the coconut tree used in testing the carbon dioxide absorption of coco-ni1t leaves at different ages. This was taken on the same day as Fig. I. The leaves are designated by numbers corresponding to those used in the text. McLEAN-CARBON DIOXIDE.
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