Carpenter, William Benjamin, 1813-1885 · London : John Churchill · leaf 768
f Prof. Williamson* have shownthat not only are there multitudes of minute remains of livingorganisms, both animal and vegetable, but that it is entirely oralmost whoUy composed of such remains. Among these wereabout 26 species of Diatomacege (siliceous), 8 species of Eora-minifera (calcareous),… … Microscopic Organisms in Chalk fromGravesend;—a, b, c, d, Textu-laria globulosa; e, e, e, Rotalia aspera; f, Textularia aeuleata;g, Planularia hexas; h, Navicula. 445. Now almost exactly the same collection of forms, withthe exception of the siliceous Diatomacese, is found in many * Memoirs of the…
Microscopy
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