TWO:The importance of a beginner learning to divide what he has to learn into these two departments of special and general, has the advantage of giving system to his plans, and pointing out that part of his education which must be acquired in the workshop and by practical experience. The time and opportunities which might be devoted to learning the technical manipulations of a foundry, for instance, would be improperly spent if devoted to metallurgic chemistry, because the latter may be studied apart from practical foundry manipulation, and without the opportunity of observing casting operations.
TWO:Mamie had dropped into what looked like a sound sleep. Hetty lay on the bed with the light out. She had the switch to her hand, she could lie there with the chance that the fiend who had done this thing would come back. More than one person in the house had known that that medicine was an experiment. If Mamie died it would do Bruce incalculable harm. And she herself might suffer. A thousand horrors rose out of the darkness and mocked at Hetty.
