The lamp and its reflection will not give as much light as two lamps, and the intensity of light thrown from the mirror depends upon the distance of the lamp from its surface, and also upon the nature and thickness of the mirror itself.
Mark E. E. S.—The first condition for admission to the St. Mary's is a residence in New York city. The remainder of your question is answered in the Post-office Box of our sixth number.
J. R. B.—We do not know how to prescribe for your poor sick rabbit.
Millia B.—All stars appear to twinkle except the planets. We can not tell the reason any plainer than it is already given by the "Professor."
Very pleasant letters, and also answers to puzzles, are received from Henry C. L., Allie D., Frank S. M., Eben P. D., Theodore F. I., Charles E. L., M. W. D., Lilian, "Subscriber," C. F. C., F. Coggswell, Claude C., Charles F. and George J. H., Victor K., J. G., M. E. E. S., Charlie G., and Anna B.