History of the Royal Society: From Its Institution to the End of the Eighteenth Century, Volume 1Abridgement of the philosophical transactions from 1665 to the end of the year 1800. |
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Page 186
... Petrifactions . Vegetable . I. PETRIFACTIONS . There is no fact connected with geognosy more interest- ing , or more extraordinary , than the existence of a vast quantity of animal and vegetable substances in the mineral kingdom . These ...
... Petrifactions . Vegetable . I. PETRIFACTIONS . There is no fact connected with geognosy more interest- ing , or more extraordinary , than the existence of a vast quantity of animal and vegetable substances in the mineral kingdom . These ...
Page 189
... petrified fruits , dug up in the isle of Sheppey . The account is by Dr. Parsons ; and is so imperfect that it is difficult to make any thing out of it . There can be little doubt , however , that these supposed petrifactions are ...
... petrified fruits , dug up in the isle of Sheppey . The account is by Dr. Parsons ; and is so imperfect that it is difficult to make any thing out of it . There can be little doubt , however , that these supposed petrifactions are ...
Page 191
... petrifactions , but merely minerals , which have accidentally assumed a particular shape . ‡ But Mr. Baker , junior , described two belemnites , from a chalk - pit , near Nor- folk ; having , the one , an oyster - shell , and the other ...
... petrifactions , but merely minerals , which have accidentally assumed a particular shape . ‡ But Mr. Baker , junior , described two belemnites , from a chalk - pit , near Nor- folk ; having , the one , an oyster - shell , and the other ...
Page 196
... petrifactions in such abundance , incorporated with different rocks , is a demonstrative proof that this earth which we inhabit has undergone great changes since its original formation . Now what are the sources of these changes ? There ...
... petrifactions in such abundance , incorporated with different rocks , is a demonstrative proof that this earth which we inhabit has undergone great changes since its original formation . Now what are the sources of these changes ? There ...
Page 218
... petrifactions . They constitute the highest mountains on the face of the earth . They are evidently chemical compounds , and contain no minerals , which show themselves to have been mechanical depositions . They must have been formed ...
... petrifactions . They constitute the highest mountains on the face of the earth . They are evidently chemical compounds , and contain no minerals , which show themselves to have been mechanical depositions . They must have been formed ...
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