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 now be determined. It seems likely that the Anthracite is the re-emergence of the English Grey. A bird with two Anthracite factors has an extremely dark grey body, jet black markings and the cheek patches of the same very dark grey as the body. G W von Kamrath describes them as "jet black wing and tail markings and deep black cheek patches". A single Anthracite factor has a similar effect to the Dark mutation, causing a Skyblue to become Cobalt in appearance. The Anthracite mutation appeared in Germany in 1998 in the aviaries of Hans-Jürgen H Lenk, who successfully established