Carpenter, William Benjamin, 1813-1885 · London : John Churchill · leaf 777
y its in-ternal organization, two different kinds of structure are usuallyseen in it; one being composed of chambers of very definiteform, quadrangular in some species, circular in others, arrangedwith a general but not constant regularity in concentriccircles (Kgs. 340, 341, h, b); the other, less…
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