. Carnegie Institution of Washington publication. v^^" fS .«» kS^h^K^ ^v ^^^^BQS^^^r ^^ '' s ^^ k-. s«' Earth Inductors and Galvanometer. I. Type 4 (c) for use on land. 3. Type (i) tor use on land. 2. Type (i) tor use on land and sea. 4. Galvanometer used witti type (b) for land 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 Carnegie Institution of Washington. Washington, Carnegie Institution of Washington

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Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1910, bookyear1915