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 strain and continues to report on its development. Initially found only in Germany, by the end of 2008 descendents of this original mutation had been exported to America, Belgium, Canada, England, Finland, Holland, Italy, Norway, Sweden, Switzerland and Pakistan. The Anthracite mutation has an incompletely dominant relationship with its wild-type allele. That is, it shows a visible effect when present as a single factor (heterozygote or SF) and a different effect when present as a double factor (homozygote or DF). In the green series varieties the SF Anthracite Light Green has one Anthracite allele and one wild-type allele at