. Physiological botany; I. Outlines of the histology of phænogamous plants. II. Vegetable physiology. Plant physiology; Plant anatomy. 202 PKOTOPIiASM. be attacbed ; these pieces run to a small reservoir of water â which can be heated at pleasure by means of a spirit-lamp, as shown in the figure. Suppose a slide to have upon it a gopd specim«n of a stamen-hair of Tradescantia, furnished with sufficient water and properly covered. It is placed in the aperture / of the hollow box, and the rest of the apparatus is tlien arranged as shown in the cut. The rate of circulation of the protoplasm is
. Physiological botany; I. Outlines of the histology of phænogamous plants. II. Vegetable physiology. Plant physiology; Plant anatomy. 202 PKOTOPIiASM. be attacbed ; these pieces run to a small reservoir of water â which can be heated at pleasure by means of a spirit-lamp, as shown in the figure. Suppose a slide to have upon it a gopd specim«n of a stamen-hair of Tradescantia, furnished with sufficient water and properly covered. It is placed in the aperture / of the hollow box, and the rest of the apparatus is tlien arranged as shown in the cut. The rate of circulation of the protoplasm is now carefully- observed, and the temperature shown by the thermometer t is also noted. With increments of heat from the upv current of yvater through the tube. through the box the rale of the protoplasmic cii'culation is in- creased. The amount of heat applied can be easil}' regulated by the height of the reservoir. If it is desirable to observe the effects of cold, the resei'voir can be placed in a vessel of ice and raised above the stage of the microscope, so that a current of colli water can flow down through the box. 558. Experiments upon tiie effect of heat can also be con- veniently' conducted by means of a less expensive apparatus which consists of a double-walled box of zinc placed on firm supports at the height of a few inches above the table, and large. 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 Goodale, George L. (George Lincoln), 1839-1923. New York [etc. ] : American Book Co.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectplantanatomy, bookyea
