History of anthracite coal mining in Pennsylvania in 1807 (Latzko, 3). In 1810, 350 tons of anthracite was mined in Pennsylvania. The use of anthracite coal was restricted due to the difficulties in transporting it efficiently, and the industry was still small and undeveloped (Latzko, 3). The War of 1812 against Great Britain increased the usage of anthracite coal. Prior to the war, citizens of the nation’s urban centers such as New York and Philadelphia received most of their coal fuel needs from Britain and Virginia’s bituminous coal supplies (Dublin, Licht, 12). During the war the British blockade of American ports severely limited the supply of British
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