The New York and the Josephine: two steamships of the Charles Morgan Line

Charles Morgan (1795 to 1882) was one of the most important figures in the development of steam packet service in the United States. Morgan's career spanned over a half century, during which he controlled some 117 steamships. Of the three known wrecks of Morgan Line steamers, two, the New York (1837–1845) and the Josephine (1867–1881), have been documented by the Minerals Management Service, a Federal agency responsible for overseeing the extraction of mineral resources on the Outer Continental Shelf. The two vessels document the changing technology of steam navigation through the middle part of the 19th century.     

CANADA DIVIDED: THE OPTIMAL DIVISION OF AN ECONOMY INTO REGIONS

ABSTRACT We develop an objective methodology for forming large regions (called macroregions) from small regions (microregions). We observe that the aggregation of microregions in an interregional input-output model causes aggregation error in the model. Our optimal regions are those that cause aggregation error to be minimized. We apply our methodology to Canada, and we compare our optimal regions for Canada to those of Statistics Canada and to those obtained using the well-known heuristic of Kossov. Statistics Canada's regions as well as those produced using Kossov's technique are characterized by substantially greater aggregation error than are those produced with our methodology.