VOLUME I
Thinking and Learning to Think
By Nathan C. Schaeffer, Ph.D., LL.D., Superintendent of Public Instruction for the State of Pennsylvania. 351 pages. Cloth, $1.25.
VOLUME II
Two Centuries of Pennsylvania History
By Isaac Sharpless, President of Haverford College. 385 pages. Illustrated. Cloth, $1.25.
VOLUME III
Kemp’s History of Education
By Dr. E. L. Kemp, Principal of East Stroudsburg Normal School. 385 pages. Cloth, $1.25.
VOLUME IV