Dry gallon measure of approximately the same size, though the dry gallon is a bit bigger. 1 dry gallon ≈ 1.163 647 fluid gallons Its implicit value in the US system was originally one eighth of the Winchester bushel, which was a cylindrical measure of 18.5 inches in diameter and 8 inches in depth. That made the dry gallon a non-terminating number of cubic inches, an irrational number whose value with the first six digits after the decimal point was 268.802521 ( cubic inches ≈ ). The bushel was later defined to be exactly 2150.42 cubic inches, making the dry gallon exactly
Gary Gallon Gary Gallon Gary Thomas Gallon (October 1, 1945 – July 3, 2003) was a Canadian environmental activist and policy advisor. President of the Canadian Institute for Business and the Environment, and editor of "The Gallon Environment Letter", Gallon dedicated 30 years to raising environmental awareness among Canadians and inspiring environmentalists worldwide. Originally from California, Gallon came to Canada during the Vietnam War. Gallon's early forays in environmental activism included helping to found the Society Promoting Environmental Conservation (SPEC, now one of the oldest environmental organizations in British Columbia) and co-founding Greenpeace. His later moves away from heady activism into the