This monograph is a reprint of a series of articles first published in the second volume of the magazine now known as _The School Arts Book_. The articles attracted wide attention on account of their timeliness and their illustrations. The plates were made from photographs of actual work upon the blackboard by Mr. Whitney, and are undoubtedly the most attractive blackboard drawings ever published. The demand for these articles has been so great that the original editions have been exhausted. They are republished in this form in the hope that they may influence yet more strongly the increasing number of teachers who find the blackboard indispensable in teaching. None of the teachers who read…
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