W. Chapman, Mary L. L., and others.—Write directly to the address given by those with whom you desire to exchange.
Maud W.—Paste your leaves firmly to the paper, and leave them under heavy pressure until they are dry, and you will not be troubled by their curling up. When you take them from the press varnish them, and they will give you more satisfaction.
G. W. Davis.—A projectile kaleidoscope may be of any convenient size, varying from six to ten inches in length, fitted with two lenses—one at the object end, to throw light from a lamp through the instrument, and the other at the eye end, through which the image is projected on a screen, placed at the proper focal distance. Any ingenious boy can fit these lenses to an ordinary kaleidoscope, and fit it to a stand, which may be placed on a table.
H. T. Wilson.—The correspondent you inquire about did not desire exchange, and we have no authority to give full address. Any short communication you may wish to make in reference to minerals will be printed in Our Post-office Box.
Favors are acknowledged from Bertha B. Allen, "Dick Deadeye," Elsie H. Tatum, George Empey, S. F. W., Lizzie Allie Hill, Jessie H. R., May Bell and Laura Milles, John R.