History of anthracite coal mining in Pennsylvania coal was being transported annually to Philadelphia using the Schuylkill River (Dublin, Licht, 13) The Wurts brothers, William and Maurice, owned coalfields in the northeastern Pennsylvania anthracite region, but found an unresponsive market in Philadelphia, which was receiving coal from the Schuylkill and Lehigh routes. They saw business potential in finding a connection route between anthracite fields and the New York City market, and so they had the Delaware and Hudson Canal Company incorporated in 1823 (Sciaky, 275-6). The D&H Company built a canal system across parts of the Delaware and Hudson Rivers that stretched from Honesdale, PA to Rondout,
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