. The power of movement in plants . Plants; Botany. Asparagus officinalis : circumnutation of plumules with tips whitened and marks placed beneath, traced on a Horizontal glass. A, young plumule; movement traced from Nov. 30th to next morning ; magnified about 35 times. B, older plumule; movement traced from to Nov. 29th; magnified 9 times, but here reduced to one-half of original scale. ments of five seedlings, varying in height from 3 inch to 2 inches, were traced. They were placed within a box and illuminated from above; but in all five cases the lon


. The power of movement in plants . Plants; Botany. Asparagus officinalis : circumnutation of plumules with tips whitened and marks placed beneath, traced on a Horizontal glass. A, young plumule; movement traced from Nov. 30th to next morning ; magnified about 35 times. B, older plumule; movement traced from to Nov. 29th; magnified 9 times, but here reduced to one-half of original scale. ments of five seedlings, varying in height from 3 inch to 2 inches, were traced. They were placed within a box and illuminated from above; but in all five cases the longer axes of the figures described were directed to nearly the same point; so that more light seemed to have come through the glass roof of the green- house on one side than on any other. All five tracings re- sembled each other to a certain extent, and it will suffice to give two of them. In A (Fig. 48) the seedling was only '45 of an. 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 Darwin, Charles, 1809-1882; Darwin, Francis, Sir, 1848-1925. New York : D. Appleton


Size: 1089px × 2295px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, booksubjectbotany, booksubjectplants, bookyear18