Proceedings of the Boston Society of Natural History, Volumen10Boston Society of Natural History., 1866 |
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A. E. Verrill A. S. Packard abdomen Academy Agassiz American apex apical appendages Asterias Atwood Band basal base Bay of Fundy birds bones Boston Bouvé C. F. Winslow C. T. Jackson Catalogue coast collection color Crustacea Curator diameter dorsal Eastport Echinoderms edge EDWARD PICKERING emery exhibited F. H. Bradley F. W. Putnam fathoms Fauna feet fish fossil fuscous genus Geological Gesellschaft Gould Grand Menan Heft hundred hymenoptera inches insects Island Journal Labrador labrum Lake larvæ London luteous Lütken Mass Menan Messrs Mollusca mountains Museum Natural History Naturforschende nearly North pair pale Pamph Panama Paris plates portion posterior Proceedings Prof pterostigma rocks Royal segment septa shells side skulls Smithsonian Société Society South species specimens spines spot Stimpson stripe surface teneral tentacles thorax tion Verein Verrill W. H. Dall Wien wings Wyman
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Página 172 - A Synopsis of the Classification of the British Palaeozoic Rocks, by the Rev. ADAM SEDGWICK, MA, FRS, with a systematic description of the British Palaeozoic Fossils in the Geological Museum of the University of Cambridge, by FREDERICK M°CoY, FGS One vol., Royal Quarto, cloth, Plates, £i.
Página 146 - For the best memoir presented a prize of sixty dollars may be awarded ; if, however, the memoir be one of marked merit, the amount may be increased to one hundred dollars at the discretion of the committee. For the next best memoir, a prize not exceeding fifty dollars may be awarded.
Página 15 - When kept in captivity, it was noticed that they but rarely left the bottom during the day, merely rising a few inches and then falling down again to the bottom of the jar. After dark, however, they could all be seen in great activity, moving near the surface of the water as fast as their appendages enabled them. During the day they often remain suspended for hours in the water simply by spreading their wing-like appendages, and then suddenly drop to the bottom on folding them.
Página 146 - Each memoir must be accompanied by a sealed envelope enclosing the author's name, and superscribed by a motto corresponding to one borne by the manuscript.
Página 146 - If in consequence of the extraordinary merit of any such investigation or discovery, the Council of the Society should see fit, they may award therefor the sum of one thousand dollars. Subject of the Annual Prize for 1865-6. " Adduce and discuss the evidences of the co-existence of man and extinct animals, with the view of determining the limits of his antiquity.
Página 178 - Report of the Proceedings of the Geological and Polytechnic Society of the West Riding of Yorkshire, 1863—4.
Página 14 - They come to the surface of the water an hour after dusk ; they do not remain long, and after ten o'clock at night were rarely met with. He succeeded only once in finding a few isolated specimens during the heat of the day ; while at full tide, soon after dark, they were very often found in abundance. These animals are very easily kept in captivity, and their habits, which can then be carefully watched, may explain in a very satisfactory manner their sudden appearance and disappearance. As was already...
Página 54 - List of American writers on Recent Conchology. With the Titles of their Memoirs and dates of publication. By GEORGE W.
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Página 15 - ... wing-like appendages, and then suddenly drop to the bottom on folding them. This habit of remaining at or near the bottom, which they have in common with so many of our marine animals, explains undoubtedly their sudden appearance and disappearance, as they probably only come to the surface in search of food at certain hours. When the animal is in motion, beating the water like a butterfly to propel itself forwards or upwards, the shell is carried at right angles, hanging somewhat obliquely to...