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| Keywords: The Quarterly journal of the Geological Society of London (12980906265).jpg 1858 PHILLIPS FOSSIL FRUIT 47 <br> fruit is a sort of collar fig 1 c ; its external face is striated ; <br> Fig 1 ” Fossil Fruit from the Upper Wealden Beds in Swanage <br> Bay View of the terminal surface showing the origin of seven <br> ridges and space for the eighth Magnified six times <br> c The collar <br> within it towards the axis a depression Between the other pro- <br> minences a similarly-placed arched depression is traceable and there <br> seems nothing to prevent the supposition that a similar collar may <br> have existed <br> The eight ribs and the intervening hollow surfaces see figs 1 <br> and 2 are striated by radiating vessels which vary in size from <br> WO TdVo diameter figs 3 4 5 6 and 7 They <br> are pressed together very continuous occasionally dichotomous ; and <br> in this case the divided vessels lie side by side figs 4 and 5 <br> In fig 5 appears a curious example of this dichotomy both up- <br> wards and downwards They are all jointed at intervals which <br> frequently measure about four diameters of the larger vessels <br> The surfaces are marked by projections which for the most part <br> appear as mere roughness figs 5 and 6 but in a few cases resemble <br> fine oblique parallel striae g-j of an inch apart and meeting the <br> sides of the tube at an angle of 40° fig 7 In other cases they <br> appear as small puncta ranged in one line at intervals equal to half <br> the diameter of the tube or scattered in a less regular manner <br> These last-mentioned observations are difficult even dubious and <br> require good single lenses of inch or i inch focus to be used for <br> comparison with the results of the compound microscope <br> The pyrites appears to be moulded in the cavities of the original <br> vessels the seeming joints being caused by original transverse plates <br> and the small projections corresponding to tubular openings and slits <br> in the walls or to internal depressions having these forms <br> The fibrous body is partly surrounded by a thick dark mass of mi- <br> nutely granulated pyrites which under the microscope suggests the <br> question of its being deposited in the cavities of a thick cellular en- <br> velope By an accidental fracture through the pyrites in the part of <br> the specimen opposite to the terminal surface already described the <br> internal cavity is laid open lined with finely crystallized bisul- 36161584 111474 51125 Page 47 Text v 15 http //www biodiversitylibrary org/page/36161584 1859 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 15 1859 Geology Periodicals Smithsonian Libraries bhl page 36161584 dc identifier http //biodiversitylibrary org/page/36161584 smithsonian libraries Information field Flickr posted date ISOdate 2014-03-07 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/12980906265 2015-08-26 14 51 29 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1859 Photos uploaded from Flickr by Fæ using a script | ||||
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