. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. Fig. 1. Hypothetical vertical section of a Spongilla having a single excurrent orifice : a, excurrent orifice ; h, central excurrent cavity ; c, interstitial canal-system ; (/, ciliated chambers ; e, intermarginal cavities; /, incurrent apertures ; g, dermal membrane; h, deeper sub- stance of the sponge*. Fig. 2. Transverse section of a similar sponge j the lettering corresponds with that made use of in the last figure. It is necessary to observe that radiate symmetry has been
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. Fig. 1. Hypothetical vertical section of a Spongilla having a single excurrent orifice : a, excurrent orifice ; h, central excurrent cavity ; c, interstitial canal-system ; (/, ciliated chambers ; e, intermarginal cavities; /, incurrent apertures ; g, dermal membrane; h, deeper sub- stance of the sponge*. Fig. 2. Transverse section of a similar sponge j the lettering corresponds with that made use of in the last figure. It is necessary to observe that radiate symmetry has been greatly exaggerated in these two figures to adapt them as far as possible for comparison with figs. 3 & 4. Fig. . 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 London, Taylor and Francis, Ltd
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Keywords: ., bookce, booksubjectbotany, booksubjectgeology, booksubjectzoology
