Nelson W. Ward Amtrak's 25 Hz traction power system.) The average daily traffic load in 1939 was 11,207 cars, rising as World War II approached to 14,100 daily cars in October 1941. The yard's one-day record was 20,660 cars in June 1943. In 1944, the westbound complex was rebuilt with 16 receiving tracks (enough to hold 1,721 cars) and 35 classification tracks, followed by the eastbound complex with 15 receiving tracks (enough to hold 1,948 cars) and 33 classification tracks. Each had a hump yard that could hold 2,668 cars. The engine house at mid-century had 46 stalls and 	Enola Yard
26054288	two turntables. A diesel locomotive shop was added in the late 1940s. In 1953, the yard comprised 145 miles of track and 476 switches and handled 11,000 cars per day. In the 1950s, PRR rebuilt Conway Yard near Pittsburgh, which upon its reopening in 1959 became the railroad's major yard for east-west traffic. Traffic at Enola Yard declined. In 1976, Conrail took over operation of Enola Yard, whose traffic declined as Conrail began to route more trains over nearby tracks of the former Reading and Lehigh Valley rail lines. In 1983, Conrail removed electrification equipment and closed the 	Enola Yard
26054289	eastbound hump yard; it closed the westbound hump yard in 1993. The steel car shop closed in 1996. Current operation. The yard is currently owned by the Norfolk Southern Railway (NS), which has operated a flat classification yard and increased operations since taking over from Conrail in 1999. In 2003, NS announced plans to resume hump yard operations. As of 2005, the yard was operating 79 tracks and handled 275,000 tons of freight a day. Enola Yard Enola Yard is a large rail yard located in East Pennsboro Township, Pennsylvania, along the western shore of the Susquehanna River at Harrisburg	Enola Yard
26054290	Holochroal eye Holochroal eye Holochroal eyes are compound eyes with many tiny lenses (sometimes more than 15,000, each 30-100μm, rarely larger). They are the oldest and most common type of trilobite eye, and found in all orders of trilobite from the Cambrian to the Permian periods. Lenses (composed of calcite) covered a curved, kidney-shaped visual surface in a hexagonal close packing system, with a single corneal membrane covering all lenses. Unlike in schizochroal eyes, adjacent lenses were in direct contact with one another. Lens shape generally depended on cuticle thickness. The lenses of trilobites with thin cuticles were thin and 	Holochroal eye
26054291	biconvex, whereas those with thick cuticles had thick lenses, which in extreme cases, could be thick columns with the outer surface flattened and the inner surface hemispherical. Regardless of lens thickness, however, the point at which light was focused was roughly the same distance below the lens. Holochroal eye Holochroal eyes are compound eyes with many tiny lenses (sometimes more than 15,000, each 30-100μm, rarely larger). They are the oldest and most common type of trilobite eye, and found in all orders of trilobite from the Cambrian to the Permian periods. Lenses (composed of calcite) covered a curved, kidney	Holochroal eye
26054292	Nelson W. Ward Nelson W. Ward Nelson W. Ward (November 20, 1837 – February 5, 1929) was a United States Army Medal of Honor recipient, honored for his actions while a private in the 11th Pennsylvania Cavalry during the Battle of Staunton River Bridge of the American Civil War. He also was the author of one book. Biography. Ward was born in Columbiana County, Ohio, on November 20, 1837. He was married to Emily Emma" Jane Hall on September 14, 1865. The couple moved to Greene County, Missouri shortly after their marriage. Nelson and Emma had two children: Joseph Edgar, born September 22, 1866 ; and Virginia, born 1869. In the late 1890s, he bought the Grundie Hotel in Springfield, Missouri, which he operated until about 1904. In the early 1900s, his family moved to Long Beach, California, where he lived for the rest of his life. Ward published the book, " 'The Master Key' to the Problems of Passion Week and the Resurrection According to the Scriptures" in 1915. His first wife, Emma, died on September 9, 1916, in Long Beach. He married Minnie Zurada Souder between Emma's death and 1920. He is interred at Sunnyside Cemetery in Long Beach, California. Military service. Ward  enlisted in the 11th Pennsylvania Cavalry on August 5, 1861, and eventually attained the rank of Quartermaster Sergeant in that regiment. He received the Medal of Honor for his actions at the Battle of Staunton River Bridge on June 25, 1864. Ward led a charge from land without meaningful cover onto a railroad bridge that was secured on both sides by Confederate troops. Although his commanding officer had been killed, he led a successful assault of the bridge despite the Union forces suffering heavy casualties. Medal of Honor citation. Citation: Voluntarily took part in a charge; went alone in front  of his regiment under a heavy fire to secure the body of his captain, who had been killed in the action. Nelson W. Ward Nelson W. Ward (November 20, 1837 – February 5, 1929) was a United States Army Medal of Honor recipient, honored for his actions while a private in the 11th Pennsylvania Cavalry during the Battle of Staunton River Bridge of the American Civil War. He also was the author of one book. Biography. Ward was born in Columbiana County, Ohio, on November 20, 1837. He was married to Emily "Emma" Jane Hall on September 14, 1865. The couple