993 resultados para British Museum (Natural History)


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During the cruise of the" Mabahiss" from Zanzibar to Colombo at Station 133 (1° 25' 54" S. to 1° 19' 42" S. and 66° 34' 12" E. to 66° 35' 18" E.) several small rock fragments were brought up in the Monegasque net; and, since at this position there is no possibility of the material being transferred by floating Ice, these specimens are of some interest as samples of oceanic rock foundations. All the rocks have a black appearance, but in the majority this skin is of negligible thickness. Exceptionally, however, it may attain to 1/3 in. (St. 133, 8), and then the specimens are rounded. The coating is made of dark opaque manganese material. At Station 166 one or two similar specimens of angular basalt were found in the trawl consisting mainly of manganese nodules.

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Preface signed : L. Fletcher.

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No dates in volumes. Lorenz and Pritzel give 1845-62; British Museum (Natural History) and United States Dept. of Agriculture give 1845-57; Arnold Arboretum library catalog gives: 1, 1847; 2 [1847?]; 3 [1847?]; 4, 1857.

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No more published.

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Hrsg. mit unterstützung von der Königl. schwedischen akademie der wissenschaften.

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The collection was presented to the British museum (Nat. Hist.) by W. Wilson Saunders.

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