. Some salient points in the science of the earth [microform]. Geology; Paleontology; Géologie; Paléontologie. WHAT MAY BE LEARNED FROM EOZOON 145 manner, in certain Silurian limestones from New Brunswick and Wale:>, in which the delicate microscopic pores of the skeletons of stalked starfishes or crinoids have been filled with mineral deposits, so that when decalcified these are most beau- tifully represented by their casts, Dr. Hunt has proved the filling mineral to be^ intermediate between serpentine and glauconite. We have, therefore, ample warrant for adhering to his con- â ' .a:. It
. Some salient points in the science of the earth [microform]. Geology; Paleontology; Géologie; Paléontologie. WHAT MAY BE LEARNED FROM EOZOON 145 manner, in certain Silurian limestones from New Brunswick and Wale:>, in which the delicate microscopic pores of the skeletons of stalked starfishes or crinoids have been filled with mineral deposits, so that when decalcified these are most beau- tifully represented by their casts, Dr. Hunt has proved the filling mineral to be^ intermediate between serpentine and glauconite. We have, therefore, ample warrant for adhering to his con- â ' .a:. Ito be pe are only care iv the. a,--:;;.".,".; 'j.!jE;jF^ >^^;.i {;.ii;'i;: ::'^^â¢â¢''»?""*â \ "rfl-'-i l'.~,%;i-: â ^.;;.u4ii'.::, _,, ?.â â â â¢â¢.^P^.'"'-â -â¢!".â¢?;⢠"=3-''.'..\ \; â . s. <-i.:.f \ V i : , -t â ( â â¢â¢ â . â â _ « ' ⢠.'â¢â -M Fig. 16.â^Joint of a Crinoid, having its Pores injected with a Hydrous Silicate. Upper Silurian Limestone, Pole Hill, New Brunswick. Magni- fied 25 diameters. elusion that the Laurentian serpentine was deposited under conditions similar to those of the modern greensand. Indeed, independently of Eozoon, it is impossible that any geologist who has studied the manner in which this mineral is associated with the Laurentian limestones could believe it to have been ^ Silicate of alumina, iron, magnesia, and 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 Dawson, J. W. (John William), Sir, 1820-1899. Montreal : W. Drysdale
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