. Bulletin of the United States Fish Commission. Fisheries -- United States; Fish-culture -- United States. Fig, 6. The safety plugs, shown in perspective in Figs. 5 and 6, and in sec- tion in Fig. 7, have answered their purpose admirably. The piece of solder {a, Fig. 6.) melts at a lower temi)erature than the wires, and is destroyed in event of a low resistance short circuit on the Fig. 7. I have never known one of them to fail. When one of these safety l^lugs melts it breaks the circuit, and the lamps on that section are im- mediately extinguished. After discovering and reijairiug th

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. Bulletin of the United States Fish Commission. Fisheries -- United States; Fish-culture -- United States. Fig, 6. The safety plugs, shown in perspective in Figs. 5 and 6, and in sec- tion in Fig. 7, have answered their purpose admirably. The piece of solder {a, Fig. 6.) melts at a lower temi)erature than the wires, and is destroyed in event of a low resistance short circuit on the Fig. 7. I have never known one of them to fail. When one of these safety l^lugs melts it breaks the circuit, and the lamps on that section are im- mediately extinguished. After discovering and reijairiug the damage, the circuit is restored by substituting a new plug in the cut-out block. Fig. 8. By indicating the engine I find the economy to be practically Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States Fish Commission. Washington, The Commission, Govt. Print. Off

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Keywords: ., bookcentury1800, bookcollectionbiod, bookdecade1880, bookyear1884