Proceedings of the Boston Society of Natural History, Bind 7

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Boston Society of Natural History., 1861
 

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Side 268 - As for myself, in particular, it would not be possible to accuse me of similar views at the moment when I am publishing the explanation of my doctrine of colonies. But you will perceive that the facts which I invoke in support of this doctrine are far from sustaining the reappearance of a fauna after the extinction of the following fauna, which the three trilobites of Georgia would do, if they had really lived after the deposit of the Hudson River group. " This reappearance would be still more astonishing,...
Side 267 - In addition to the evidence heretofore possessed regarding the position of the shales containing the Trilobites, I have the testimony of Sir WE Logan, that the shales of this locality are in the upper part of the Hudson River group, or forming a part of a series of strata which he is inclined to rank as a distinct group, above the Hudson River proper. It would be quite superfluous for me to add one word in support of the opinion of the most able stratigraphical geologist of the American continent.
Side 218 - ... of small perforations in the paper, the hammer and the fillet of paper both receiving their motion from a train of clock-work, of peculiar construction, connected with the apparatus. The projecting shaft of the pulley carries an index, which, revolving in front of a dial-plate placed over the pulley, enables the observer to note the temperature as compared with the ordinary thermometer, and to adjust the rod-thermometer to the standard whenever necessary. The adjustment is made by turning a screw...
Side 112 - The nest is .always placed in a hole or under a projecting portion of the rock, seldom more than a foot from the surface, and never, as far as my experience goes, out of reach of the hand. On being caught they make no noise, and do not resist at all. Why these birds and the Stormy Petrels never enter or leave their holes in the daytime, is one of the mysteries of nature; both of them feeding and flying all day, yet never seen in the vicinity of their breeding pliices before dark.
Side 266 - Such is my profound conviction, and I think any one who has made a serious study of the trilobitic forms and of their vertical distribution in the oldest formations will be of the same opinion. "Besides, all who have seriously studied palaeontology know well that each geological epoch, or each fauna, has its proper and characteristic forms, which once extinct reappear no more. This is one of the great and beautiful results of your immense researches, which have generalized this law, recognized by...
Side 267 - When an eminent man expresses such ideas so eloquently, it is because they rise from his deepest convictions. It must then be conceived that J. Hall, restrained by the artificial combinations of stratigraphy previously adopted by him, has done violence to his...
Side 266 - II, xxxi, 212], called attention to the trilobites therein figured, and declared that no paleontologist familiar with the trilobites of Scandinavia would " have hesitated to class them among the species of the primordial fauna, and to place the schists enclosing them in one of the formations containing this fauna. Such is my profound conviction, etc." The letter containing this statement had already appeared in the American Journal of Science for March, 1861, but Mr. Billings in his note just referred...
Side 286 - ... find the cleavage planes of different pebbles running in wholly different directions, sometimes across, sometimes parallel, and sometimes oblique, to the general bedding, just as might be expected from the preservation of the original cleavage-structure of the rock from which they were derived. 2d. Such a moulding of the pebbles by pressure would either enormously distort or entirely obliterate any fossil forms or impressions which may have existed upon or within the pebbles at the time of their...
Side 157 - Wiener Verzeichniss' ; together with nearly complete sets of most of the publications of entomological societies and entomological periodicals. Some of these are from the library of Mr. Say, and contain a few of his notes; many were once possessed by Prof. Peck, the predecessor of Dr. Harris, and one is from the library of Dru Drury; and nearly all are enriched by copious notes by Dr. Harris.
Side 270 - America and that of the contemporaneous faunae of Europe, leaving to each the imprint peculiar to its continent. " I can well imagine, from the position previously taken by our learned American brothers on the subject of the Taconic system, that the final solution of which I speak will not be obtained without debate, and perhaps some wounding of self-love, for some opinions that appear to be dominant must be abandoned. " But experience has taught me that in such cases the most elevated minds turn...

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