918 resultados para Bridgewater, Francis Egerton, Duke of, 1736-1803


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Collection : Smithsonian Institution. Bureau of American ethnology ; 109

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The endocrine pancreas of the rock bass (Ambloplites rupestris) was examined by light and electron microscopy. Two cell types with staining properties similar to mammalian A and B cells, and a third, non-staining cell type were found in the spherical pancreatic islets that were surrounded by a connective tissue capsule and embedded in two small masses of exocrine tissue. From an analysis of the ultrastructure of the A and B cells, a secretory cycle for each of these cell types was proposed. The secretory cycle of the A cell consisted of three well defined stages: (1) A cell production stage: during which A granule formation occurred in the sacs of the Golgi apparatus and the cell was characterized by the presence of numerous secretory granules, some elements of lamellar endoplasmic reticulum, and a homogeneously granular nucleus. The cytoplasm contained few distended cisternae, variable numbers of free ribosomes, microtubules and small vesicles. (2) A cell release stage: during which the release of A granules occurred and the cell usually contained several large distended cisternae and variable numbers of secretory granules. Granule release mechanisms included exocytosis, by which individual granules were released into the extracellular space after their membranes fused with the plasmalemma, and emiocytosis, by which one or more granules were released into a large cisterna whose membrane fused with the plasmalemma and formed a pore through which the cisternal contents passed out of the cell. (3) A cell reorganization stage: during which the changeover from the release stage to the production stage occurred and the reorganization of organelles and membrane structures took place. The cell contained few secretory granules and numerous small endoplasmic reticular cisternae. The cytoplasm exhibited less electron density than either of the other two stages. The A granule after formation underwent a series of morphological changes which were described in four numerically identified phases. The secretory cycle of the B cell consisred of two stages: (1) B cell production stage: during which the B granule formation occurred in the sacs of the Go1gi apparatus. The cell was characterized by an irregular outline, the presence of numerous secretory granules, and an irregularly shaped nucleus which contained variable amounts of clumped chromatin. The cytoplasm contained moderate amounts of lamellar endoplasmic reticulum studded with ribosomes, several small vesicles, and an active Go1gi apparatus. (2) B cell release stage: during which the release of B granules occurred. The cell contained a rounded nucleus with dispersed chromatin, several distended endoplasmic reticular cisternae and a variable number of secretory granules. Granule release occu~ by emiocytosis and exocytosis similar to that found for the A cell.

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Survey map and description of Francis Goring Parnell's land created by The Welland Canal Company. Included is a written description of the land along with a drawing of the land. Noteable features include; line between Widow Secord and Parnell's land, line between Rykert and Parnell's land. The deed for the land is dated December 5th, 1826. The land totals 4 acres, 1 road, and 6 perches. Surveyor notes are seen in pencil on the map.

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Originally published in the Federal Republican of Baltimore. Printed by Benjamin Edes

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A photograph of Florence Upper, the wife of Francis Bond Head Willson.

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Pay roll voucher #14 from the Engineer Department of Port Dalhousie and Thorold Railway Extension for the Southern Division for the month of April, 1857 approved by F. Shanly, chief engineer and Francis A. Doyle, assistant engineer, April 28, 1857.

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Pay roll voucher #21 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the Southern Division approved by F. Shanly, chief engineer and Francis A. Doyle, assistant engineer (copy) June 29, 1857.

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Pay roll voucher #26 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the Southern Division, for the month of July, 1857 approved by F. Shanly, chief engineer and Francis A. Doyle (copy), July 28, 1857.

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Voucher from the Engineer Department of Port Dalhousie and Thorold Railway Extension to Francis A. Doyle for fees at the Fonthill Registry Office (copy), July 28, 1857.

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According to Hemingway all good prose has the dignity and draught of an iceberg. This is especially true of Hemingway's short stories. "Francis Macomber" counts among the best composed short stories in English. Interpretation sways between Hemingway's idealisation of the male code and its deconstruction. Is the White Hunter a British scourge of American values or is Margot the tragic victim of a newly founded male friendship? Is the open ending rather a hunting accident or the mean murder of an unloved spouse? Hemingway gives hitherto uninterpreted clues by mentioning strategies of big game hunting and ballistics. Carter's magic story "Master"; deals with the regression of a White Hunter who has become 'his own negative'. An Englishman dissolves into the Amazonian jungle and is killed by his own victim. The story can be read as a macabre crime of sexuality and murder or as a dystopian warning of the future of mankind if we go on exploiting and destroying our planet.