The Popular Science Monthly.
Conducted by E. L. and W. J. Youmans.
Containing instructive and interesting articles and abstracts of articles, original, selected, and illustrated, from the pens of the leading scientific men of different countries;
Accounts of important scientific discoveries;
The application of science to the practical arts;
The latest views put forth concerning natural phenomena, by savants of the highest authority.
TERMS: Five dollars per annum; or fifty cents per number. A Club of five will be sent to any address for $20.00 per annum.
The volumes begin May and November of each year. Subscriptions may begin at any time.
THE POPULAR SCIENCE MONTHLY and APPLETONS' JOURNAL, together, for $7.00 per annum, postage prepaid.