. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. smith: eyes of pulmoxate gastekopods. 235 and molluscs could not be cuticular, and gave the first significant inter- pretation to the fibrillations of the retinal elements. Although he still held, in a vague way, to the cuticular conception of the rod-zone, he initiated the interpretation which regards as untenable the idea, that the recipient organs of the retina can be inert matter; in support of his belief he found an astonishing abundance of what he termed neurofibrils in the rod-zone, as well as in the deeper lay
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. smith: eyes of pulmoxate gastekopods. 235 and molluscs could not be cuticular, and gave the first significant inter- pretation to the fibrillations of the retinal elements. Although he still held, in a vague way, to the cuticular conception of the rod-zone, he initiated the interpretation which regards as untenable the idea, that the recipient organs of the retina can be inert matter; in support of his belief he found an astonishing abundance of what he termed neurofibrils in the rod-zone, as well as in the deeper layers of the retina. On the whole, however, little confidence can be placed in Patten's neurofibrils, for the following reasons : (1) he used a method which in itself is not suited to the differentiation of histological details; (2) a maceration which will dissolve cuticula cannot be expected to leave the delicate nerve fibrils intact; and (3) Hesse, who has recently reinvestigated the eye of Haliotis, one of the forms on which Patten worked, does not con- 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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