OBJECT LESSONS.
WILLSON'S MANUAL OF OBJECT LESSONS. A Manual of Information and Suggestions for Object Lessons, in a Course of Elementary Instruction. By Marcius Willson. 12mo, Cloth, $1.00.
CALKINS'S PRIMARY OBJECT LESSONS. Primary Object Lessons, for Training the Senses and Developing the Faculties of Children. A Manual of Elementary Instruction for Parents and Teachers. By N. A. Calkins. Fifteenth Edition. Rewritten and Enlarged. 12mo, Cloth, $1.00.
Published by HARPER & BROTHERS, New York.
☞ Sent by mail, postage prepaid, to any part of the United States, on receipt of the price.
SOLUTION TO MONDDIA PUZZLE.
With a pair of scissors cut the straight line from A to B in Fig. 1. Then join the two pieces as in Fig. 2, and you have a Diamond.