grounding of wires. These problems drew attention to weather dynamics. One report in Canada in 1883 stated: “It was early discovered that when the wind at Montreal was from the East or North-East, rain storms travelled from the West, and the stronger the land current, the faster came the rain from the opposite direction.” It is clear that telegraph, by providing a wide sweep of instant information, could reveal meteorological patterns of force quite beyond observation by pre-electric man.