 ... quarter of an inch in depth at several times, allowing sufficient intervals for the fluid to stain the stone in that plane, 4, 3, 2, 1, it has fallen to at the last abstraction. These stains will present a series of horizontal lines or contours, 4,...  A course of geometrical drawing - Σελίδα 86των William Schofield Binns - 1881Πλήρης προβολή - Σχετικά με αυτό το βιβλίο
 | George D. Burr - 1847 - 270 σελίδες
...it: bed it in clay placed in the bottom of the box, through which there should be a small hole and a plug; fill the box with water stained with Indian...obtain a sort of scale of the relative steepness. If ABCD (in the opposite diagram) represent the base of a stone, CHAP. VI.] OF DRAWING HILLS. and the... | |
 | Auguste Frédéric Lendy - 1864 - 254 σελίδες
...series of horizontal lines or contours, 4, 3, 2, 1, all round the surface of the stone ; and if we examine the stone thus prepared, looking down upon the top, we shall see that the steepness and REPRESENTATION OF THE GROUND. the flexures of its sides will be accurately marked by these contours,... | |
 | Auguste Frédéric Lendy - 1869 - 284 σελίδες
...series of horizontal lines or contours, 4, 3, 2, 1, all round the surface of the stone ; and if we examine the stone thus prepared, looking down upon the top, we shall see that the steepness REPRESENTATION OF THE GROUND. and the flexures of its sides will be accurately marked by these contours,... | |
 | Spon E. & F.N., ltd - 1874 - 464 σελίδες
...lines or contours, 4, 3, 2, 1, all round the surface of the stone, as shown in Fig. 71 3J ; and if we examine the stone thus prepared, looking down upon the top, we shall sec that the steepness and the flexures of its sMe.s will be accurately marked by these contours, which... | |
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