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This is the title page to the 1811 edition of the Descriptive Geometry of Gaspard Monge (1746-1818). This book deals with methods for representing three-dimensional objects in two dimensions. It was written to accompany Monge's courses at the Ecole Polytechnique in Paris.
Wanting to know the breadth of a river, I measured a base of 500 yards in a straight line close by one side of it.
Two travelers, starting at the same time from the same point, travel in opposite directions round a circular railway.
In baking a hemispherical loaf of bread of 10" radius, the crust was everywhere of an equal thickness, and the solidity of the crust was equal to half the solid content of the whole loaf. What were the dimensions of the interior soft part?
Now there are six-headed four legged animals and four-headed two-legged birds. Find the total number of animals and birds.
A ladder has 100 steps. On the first step sits 1 pigeon; on the second, 2; on the third, 3; and so on up to the hundredth. How many pigeons in all?
Show that the curves x2 - y2 = a2 and 2 xy = b2 cross at right angles.
A survey of over two thousand years of the history of mathematics on the Indian subcontinent.
A four-sided town measures 1100 feet on one side and 1000 feet on the other side, on one edge 600 and the other edge 600.
A study of Victorian idealism and its relation to religion, as exemplified in the work of three 19th century British mathematicians.

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