Excerpt from The Teaching of Chemistry and Physics in the Secondary School
The present volume in the American Teachers Series follows the lines marked out in the preface to the first volume. No effort has been made to bias or harmonize the views of the authors. It has been deemed better to have a logical presentation, even at the risk of disagreement, than to give the impression that there is only one way of conceiving or giving class instruction. These volumes are intended as teachers" helps, and their purpose is served if they are suggestive to teachers who are earnestly seeking for improvement.
The authors of the separate parts on Chemistry and Physics have conferred frequently during the progress of the work, and have endeavoured to avoid unnecessary duplication. There are thus some subjects of equal importance to teachers of chemistry and physics which are discussed in one of the sections only. Some references, equally suited to either part, appear only once for the same reason. In a few instances, however, the divergence between the opinions of the authors seemed to make it desirable that each should present his own.
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