. Methods of study in natural history . Animals; Corals; Embryology. characteristic of the Astrasans. The Porites re- semble the Astraeans, but the pits are smaller,. with fewer partitions and fewer tentacles, and their whole substance is more 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 Agassiz, Louis, 1807-1873. Boston : Ticknor and Fields

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Keywords: ., bookcentury1800, bookd, booksubjectanimals, booksubjectembryology