... will be reflected down to c, thence to b, then up to a, and so out to the eye, giving the appearance of the straight lineal ... gardens, colonnades, aamp;c.; after having cut the blank parts neatly out, place them in the two grooves, E, F, of the box.
Title | : | Recreations in Mathematics and Natural Philosophy |
Author | : | |
Publisher | : | - 1840 |
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