Page:The American Boy's Handy Book edition 1.djvu/285

There was a problem when proofreading this page.
252
Autumn.

the puppets large enough, and many or all may have to be enlarged.

How to Make a Camera for Drawing.

This instrument necessitates an outlay of from fifty cents to a dollar and a half for a lens; unless the reader is fortunate enough to already possess a double convex lens, or what is known among boys as a "burning-glass." A small mirror or piece of looking-glass, a small pane of common window glass, Image missingCamera for Drawing. and an old soap or candle box, or some pine lumber of which to make a box, is all the material required.

Let the box be about eighteen inches long, nine inches deep, and twelve inches wide; fasten the lens in a hole cut for that purpose at one end of the box. A piece of looking-glass must be fixed at an angle of forty-five degrees at the opposite end of the box. The angle may be obtained in this manner: if from where the top of the glass rests against the end board, it measures nine inches to the bottom of the box, then the bottom of the glass should be nine inches from the end of the box.

Grind the surface of one side of the window-pane glass by rubbing it upon a flat stone or sand-paper. Make a lid to the top of the box, as shown in the illustration, and under the lid fasten the ground glass. Paint or blacken the inside of the box, and adjust the parts by experiment, so that when the lens is

This article is issued from Wikisource. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.