History of anthracite coal mining in Pennsylvania bituminous fuel reaching the US, and there was also a shortage in Virginia’s supply resulting in a fuel crisis (Adams, “Warming the Poor,” 76). Before the war citizens did not like to use anthracite coal because it was difficult to ignite and maintain, but the wartime shortage forced them to start using anthracite. Jacob Cist of Wilkes-Barre promoted the use of anthracite during and after the War of 1812. Jacob Cist’s father was a major investor in the Lehigh Coal Mine Company, so Cist began to transport the company’s coal to Philadelphia by the Lehigh and Delaware Rivers (Dublin, Licht,
Anthracite budgerigar mutation just one Anthracite allele correspond to the splits of recessive mutations. A single Anthracite factor has a similar effect to the Dark mutation, causing a Skyblue to become Cobalt in appearance - as was suspected with the English Grey. In fact, the similarity of the Anthracite to the English Grey is striking. The description is virtually identical, and the cobalt appearance of a Skyblue with a single Anthracite factor is exactly what was suspected for the English Grey. The interaction of the Anthracite and Dark budgerigar mutations has not yet been investigated. It is expected that a combination of the