. Contributions from the Hull Botanical Laboratory. Plants. IQ2o] MAGNESSâINTERCELLULAR SPACES 3°9 fitted with a ground glass stopper (C) in which is sealed a capillar v tube. The flare in the top of the cylinder should be sufficient to allow the stopper to set well down (as illustrated), in order to per- mit a mercury seal above the stopper. The capillary tubing is bent around in the manner shown, in such a way that the tip can be â immersed in a vessel of mercury (D). Glass stopcocks (E and F) must be in the positions shown. It is especially important that the cock F be as indicated, rather
. Contributions from the Hull Botanical Laboratory. Plants. IQ2o] MAGNESSâINTERCELLULAR SPACES 3°9 fitted with a ground glass stopper (C) in which is sealed a capillar v tube. The flare in the top of the cylinder should be sufficient to allow the stopper to set well down (as illustrated), in order to per- mit a mercury seal above the stopper. The capillary tubing is bent around in the manner shown, in such a way that the tip can be â immersed in a vessel of mercury (D). Glass stopcocks (E and F) must be in the positions shown. It is especially important that the cock F be as indicated, rather than directly above the cylinder, for by the former arrangement any small leak about the cock can quickly be detected. Cocks and stopper should be kept well. Fig. i coated with heavy desiccator grease. The proper dimensions for the cylinder (B) will obviously vary with the type of tissue being examined, and the volume of this tissue necessary to secure a gas sample adequate for an analysis. For work with apple and potato tissue, a cylinder 6 inches long and 1 inch inside diameter has been found very 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
