. Annual report of the Regents. New York State Museum; Science. 13. Microporella ciliata; a, b, c, d, showing modificatious of a sessile avicularium (after Hincks). In the fossil state the obverse or noncelluliferous face of Fenes- telloid forms is apparently a solid calcareous layer; but in a thin transparent section it is seen to be penetrated by numerous minute tubuli at right angles to the surface. In a decorticated specimen of the same family, the longitudinal structure is appar- ently composed of numerous cylindrical fibers. In a cross-section these have the appearance of tubuli. M


. Annual report of the Regents. New York State Museum; Science. 13. Microporella ciliata; a, b, c, d, showing modificatious of a sessile avicularium (after Hincks). In the fossil state the obverse or noncelluliferous face of Fenes- telloid forms is apparently a solid calcareous layer; but in a thin transparent section it is seen to be penetrated by numerous minute tubuli at right angles to the surface. In a decorticated specimen of the same family, the longitudinal structure is appar- ently composed of numerous cylindrical fibers. In a cross-section these have the appearance of tubuli. Many of the cells, both in 55. 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 New York State Museum; University of the State of New York. Board of Regents. Albany : J. B. Lyon, State Printer


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Keywords: ., bookauthorne, bookcentury1800, bookdecade1880, booksubjectscience