✦ LIBER ✦

Die U.S. Geological Survey in Zahlen

✍ Scribed by Max Pfannenstiel

Book ID: 105314714
Publisher: Springer
Year: 1936
Tongue: English
Weight: 201 KB
Volume: 27
Category: Article
ISSN: 0016-7835
DOI: 10.1007/bf01804999

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Mar., I915.] CURRENT TOPICS. 375 lowering this potential. It is desirable, therefore, to increase the conductivity of the rails. Short circuits by lightning discharges can be obviated by more carefully arranged installations.