The Glen is flexible: it conforms to uneven surfaces.

The Glen is easily handled: it can be rolled or folded.

The Glen is made in all sizes and special shapes.

The Glen means cleaner homes.

ASK FOR THE GLEN AT ANY HARDWARE STORE

Agents wanted in all sections. Write us, Dept. G, for
particulars and terms. Our market is in every home.

McKINNEY MANUFACTURING CO.
PITTSBURG, PENN., U.S.A.

Chemistry and its Relations to Daily Life

By LOUIS KAHLENBERG and EDWIN B. HART
Professors of Chemistry in the University of Wisconsin
Cloth, 12mo, illustrated, 393 pages. List price, $1.25