The utility of such a computating map will be obvious, not only to the school child but for an adult or oflicial person. the periphery, G, of the circle being divided into divisions, D, which represent the minutes in twenty four hours; (for this purpose it would take fourteen hundred and forty of these divisions,) I have shown but half of this number in the drawings because the whole number would bring the lines too near together for showing them clearly. Beinecke Rare Book and Manuscript Library > Gleason's new standard map of the world : on the projection of J.

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On page 350, he mentions “a new map of the world as it is” and says, “it contains all the continents and principal islands and rivers of the world, also, all the principal cities of the earth. Haven't received it yet but I'm excited to know I'll have in my possession the most acurate map of the world. David Goldhaber-Gordon, a professor of physics at Stanford University, said that while flat maps are convenient, “a flat map of a curved surface must have distortions,” and “different mappings create different distortions. My invention has reference to certain mechanical devices and geographical illustrations, to be used on a flat circular map of the world, and will be fully and clearly hereinafter described and claimed, reference being had to the accom panyingdrawings, in which- Figure 1 represents a flat circular map of the world, showing the outlines of the several continents, some ofthe larger islands, the indicating arms and other matter which will be more clearly hereinafter shown. Somehow Gleason got hold of Christopher’s map and republished it, not once, but twice, albeit with his own modifications.

At first look Gleason’s map is visually striking but otherwise innocuous: a north-polar azimuthal equidistant projection, enlivened by a bright-red horizon ring, with two rotating “indicator arms” to be used for determining the times at different locations. Keep in mind that anyone can view public collections - they may also appear in recommendations and other places. The American Universal Geography: Or, A View of the Present State of All the Kingdoms, States, and Colonies in the Known World.The ratings/reviews displayed here may not be representative of every listing on this page, or of every review for these listings. On the face of the map proper, and within another circle (still toward the center) is laid out the continents, principal islands, rivers and cities of the world; their latitudes and longitudes corresponding to the latitudes and longitudes of all other first class geographical globe maps or charts of the world. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising.