History of anthracite coal mining in Pennsylvania 12). Once in Philadelphia, he used testimonials and public demonstrations to negate the stereotype of anthracite and convince Philadelphia society that the hard coal could be used as a replacement for bituminous coal (Adams, “Warming the Poor,” 81). Cist and other advocates including the Pennsylvania state legislature and government officials continued to promote the anthracite, and the War of 1812 was able to open the way for Pennsylvania anthracite coal to outdo Virginia’s bituminous’ share of the market (Day, 371). With the opening of the major canals Lehigh, Schuylkill, and Delaware & Hudson in addition to smaller ones such as
Anthracite budgerigar mutation the Anthracite locus. This darkens the body colour to a shade somewhat deeper than a Dark Green. The DF Anthracite Light Green, with two Anthracite alleles, is a deep olive colour. In the blue series varieties the SF Anthracite Skyblue has one Anthracite allele and one wild-type allele, with a body colour rather like a deep Cobalt. The DF Anthracite Skyblue with two Anthracite alleles, the true Anthracite variety, has a dark grey, almost black, body colour with mauve overtones. Because the Anthracite factor is always visibly expressed no budgerigar can be split for Anthracite. The heterozygotes of Anthracite with