{"product_id":"bonne-southern-hemisphere-atlas-encyclopedique-1787","title":"Latitude Sud. Hémisphère Occidental. – Rigobert Bonne, Atlas Encyclopédique (Paris, 1787–1788)","description":"\u003ch3 data-start=\"152\" data-end=\"166\"\u003eMonde Horizontal de latitude Sud. Hémisphère Occidental.\u003c\/h3\u003e\n\u003cp data-start=\"167\" data-end=\"377\"\u003e\u003cem data-start=\"167\" data-end=\"195\"\u003eRigobert Bonne (1727–1794)\u003c\/em\u003e\u003cbr data-start=\"195\" data-end=\"198\"\u003e\u003cem data-start=\"198\" data-end=\"204\"\u003eFrom\u003c\/em\u003e \u003cem data-start=\"205\" data-end=\"264\"\u003eAtlas Encyclopédique, contenant la géographie ancienne...\u003c\/em\u003e\u003cbr data-start=\"264\" data-end=\"267\"\u003e\u003cem data-start=\"267\" data-end=\"300\"\u003eParis: Hôtel de Thou, 1787–1788\u003c\/em\u003e\u003cbr data-start=\"300\" data-end=\"303\"\u003eCopperplate Engraving on Laid Paper\u003cbr data-start=\"342\" data-end=\"345\"\u003eApprox. 28cm x 39cm\u003c\/p\u003e\n\u003cp data-start=\"381\" data-end=\"648\"\u003eThe composition offers a sophisticated oblique projection oriented around 45° south latitude, depicting the Western Hemisphere from an uncommon southern viewpoint. It encompasses the Atlantic and Pacific Oceans, the Americas, and the South Pacific island chains, while two inset diagrams at upper and lower right illustrate the geometry of the Earth’s sphere and the projection method—reflecting Bonne’s deep concern with mathematical geography and Enlightenment precision.\u003c\/p\u003e\n\u003cp data-start=\"381\" data-end=\"648\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eHow this map was made: \u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1338\" data-end=\"1614\"\u003eYour specific map is labelled \u003cem data-start=\"1368\" data-end=\"1413\"\u003e“sur un plan incliné à 45° de latitude sud”\u003c\/em\u003e — literally, “on a plane inclined to 45° south latitude.”\u003cbr data-start=\"1471\" data-end=\"1474\"\u003eThat means Bonne projected the Western Hemisphere onto a tilted mathematical plane, intersecting the globe along the parallel of 45°S.\u003c\/p\u003e\n\u003cul data-start=\"1616\" data-end=\"2094\"\u003e\n\u003cli data-start=\"1616\" data-end=\"1758\"\u003e\n\u003cp data-start=\"1618\" data-end=\"1758\"\u003eIt’s a horizontal or oblique stereographic projection, designed to represent the hemisphere as if viewed from above the South Pacific.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1759\" data-end=\"1866\"\u003e\n\u003cp data-start=\"1761\" data-end=\"1866\"\u003eThe circles of latitude and longitude were computed by trigonometric formulae — not drawn freehand.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1867\" data-end=\"2094\"\u003e\n\u003cp data-start=\"1869\" data-end=\"2094\"\u003eThe two small inset diagrams (top right and bottom right) demonstrate his geometric method: one shows the relationship between the sphere and the inclined plane, the other the \u003cem data-start=\"2045\" data-end=\"2063\"\u003e“Sphère oblique”\u003c\/em\u003e with the Earth’s axial tilt.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2096\" data-end=\"2289\"\u003eThis projection was used to teach \u003cem data-start=\"2130\" data-end=\"2150\"\u003espherical geometry\u003c\/em\u003e and \u003cem data-start=\"2155\" data-end=\"2180\"\u003eastronomical navigation,\u003c\/em\u003e it’s not just a map, it’s an Enlightenment diagram of how the Earth itself can be mathematically modelled.\u003c\/p\u003e\n\u003cp data-start=\"728\" data-end=\"1114\"\u003eRigobert Bonne (1727–1794), one of the most important French cartographers of the late Enlightenment, served as Royal Hydrographer and Cartographer to the French Navy. His maps are celebrated for their precision, clarity, and restrained elegance marking a shift away from the decorative flourishes of earlier Baroque mapmaking toward a more scientific and empirical geography.\u003c\/p\u003e\n\u003cp data-start=\"1116\" data-end=\"1567\"\u003eThe \u003cem data-start=\"1120\" data-end=\"1142\"\u003eAtlas Encyclopédique\u003c\/em\u003e represents one of the most ambitious mapping projects of the 18th century, integrating ancient, medieval, and modern geography into a single comprehensive visual reference. Bonne’s engraving of Europe here captures a pivotal moment in the continent’s cartographic and political understanding just before the French Revolution, delineating the old kingdoms and maritime boundaries of the late 1700s with exceptional accuracy.\u003c\/p\u003e\n\u003cp data-start=\"1569\" data-end=\"1782\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eCondition:\u003c\/span\u003e\u003cbr data-start=\"1583\" data-end=\"1586\"\u003eVery good to excellent. Crisp impression with visible plate mark, wide margins, and light toning consistent with age. Minor faint offsetting in places, as expected for a fine 18th-century sheet.\u003c\/p\u003e\n\u003cp data-start=\"1784\" data-end=\"1886\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLiterature:\u003c\/span\u003e\u003cbr data-start=\"1799\" data-end=\"1802\"\u003eBonne, R. \u0026amp; Desmarest, N. \u003cem data-start=\"1828\" data-end=\"1850\"\u003eAtlas Encyclopédique\u003c\/em\u003e, Paris: Hôtel de Thou, 1787–1788.\u003c\/p\u003e\n\u003cp data-start=\"1893\" data-end=\"2192\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eCollector’s Note:\u003c\/span\u003e\u003cbr data-start=\"1914\" data-end=\"1917\"\u003eCollectors prize this plate not only for its beauty but also for its didactic purpose it bridges the decorative and the scientific, embodying the intellectual ambition of late-18th-century Parisian cartography. Uncoloured impressions like ours, with strong platemark, clean paper tone, and visible watermarking, are increasingly scarce. The map’s condition and projection make it particularly appealing to collectors of Enlightenment scientific illustration and early geographic visualization.\u003cbr\u003e\u003c\/p\u003e","brand":"Lumenrare Antique Prints \u0026 Maps","offers":[{"title":"Default Title","offer_id":56381493707135,"sku":"LR-BON-SHEMISPHERE-1787","price":140.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/8356\/9279\/files\/latitude-sud-hemisphere-occidental-rigobert-bonne-atlas-encyclopedique-paris-17871788-5023818.jpg?v=1763486403","url":"https:\/\/lumenrare.com\/products\/bonne-southern-hemisphere-atlas-encyclopedique-1787","provider":"Lumenrare Antique Prints \u0026 Maps","version":"1.0","type":"link"}