[Bubier], Edward Trevert, 1858- [from old catalog] · Lynn, Mass., Bubier pub. co. · leaf 322
ve elementary instruction. As a consequenceeach year more of this elementary work is rele-gated to the high schools and preparatory institu- 320 ELECTRICITY AND ITS tions. Most of these schools however, supportedby municipalities, or by private endowment, areunable to purchase high grade testing… … Fig. i 6. adapted to the use of beginners, as they arestrongly made and have their delicate parts soarranged as to be easily and quickly replaced incase of injury. Fig. 15 shows a reflecting galvanometer of theThomson type; a small brass cylinder with glassface may be pushed backward and forward in…
Electricity
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