Everyday Leadership
For about a century, one of the indications of authority in the coal mine in Ohio was the “buglight”. The proper name of the instrument is the Koehler flame safety lantern. This lantern replaced the canary as the primary tool for detecting deficiency of oxygen in the 1890s. Prior to 1970, buglights were the approved devices to detect methane accumulations and oxygen deficiency. After 2000, more sophisticated instrumentation replaced the buglight altogether.