Archive image from page 57 of Dawn of life being the. Dawn of life: being the history of the oldest known fossil remains, and their relation to geological time and to the development of the animal kingdom dawnoflifebeingh00daws Year: 1875 36 THE DAWN OP LIFE. logical and palEeontological knowledge and the sur- veys previously made, whereby the age and distribution of the Laurentian rocks and the chemical conditions of their deposition and metamorphism were ascer- tained. The first specimens of Eozoon ever procured, in so far as known, were collected at Burgess in Ontario by a veteran Canadian


Archive image from page 57 of Dawn of life being the. Dawn of life: being the history of the oldest known fossil remains, and their relation to geological time and to the development of the animal kingdom dawnoflifebeingh00daws Year: 1875 36 THE DAWN OP LIFE. logical and palEeontological knowledge and the sur- veys previously made, whereby the age and distribution of the Laurentian rocks and the chemical conditions of their deposition and metamorphism were ascer- tained. The first specimens of Eozoon ever procured, in so far as known, were collected at Burgess in Ontario by a veteran Canadian mineralogist. Dr. Wilson of Perth, and were sent to Sir William Logan as mineral specimens. Their chief interest at that time lay in the fact that certain laminas of a dark green mineral Fig. 7. Eozoon mineralized by Loganite and Dolomite. (Collected by Dr. Wilson, of Perth.) present in the specimens were found, on analysis by Dr. Hunt, to be composed of a new hydrous silicate, allied to serpentine, and which he named loganite: one of these specimens is represented in fig. 7. The form of this mineral was not suspected to be of organic origin. Some years after, in 1858, other specimens, difi'erently mineralized with the minerals serpentine and pyrox-


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