He was the founder of the ornithological newspaper "Rhea", whose two numbers appeared in 1846 and in 1849. He is best remembered for his work in ornithology, in particular research involving avian reproduction. During his career, he amassed a collection of 2000 bird nests and 5000 eggs from 1200 species. With Christian Ludwig Brehm, he collaborated on ""Systematische Darstellung der Fortpflanzung der Vögel Europa's mit Abbildung der Eier"" (Systematic representation of the reproduction of birds of Europe with illustration of eggs), published in five volumes (1825–1938). He later published his most famous work, titled ""Fortpflanzungsgeschichte der gesammten Vögel nach dem gegenwärtigen Standpunkte der Wissenschaft"" (Reproductive history of birds from a standpoint of current science), issued in ten parts from 1845 to 1856.         68th Avenue–64th Place Historic District  68th Avenue–64th Place Historic District is a national historic district in Ridgewood, Queens, New York. It includes 46 contributing buildings built between 1909 and 1913. They consist mainly of two story brick row houses with one apartment per floor. Buildings feature alternating yellow, amber, brown and burnt orange speckled brick and cast stone detailing in the Romanesque Revival style. It was listed on the National Register of Historic Places in 1983. List of Chinese mathematicians  This is a list of Chinese mathematicians. With a history spanning over three millennia, Chinese mathematics is believed to have initially developed largely independently of other cultures. Pirnaischer Platz  The Pirnaischer Platz is a square in Dresden, Germany. It is the site of the city's Landhaus. William J. Carpenter  William J. Carpenter (April 17, 1827 – February 21, 1921) was an American outdoorsman from West Virginia. He was said to have had "no equal" in skills at hunting and fishing, and to be the best long rifle marksman in his community in his younger years—his skill in hitting difficult targets in squirrel hunting earned him the nickname "Squirrely Bill." Carpenter was a descendant of Jeremiah Carpenter, the first white man to settle in the upper Elk River valley, at or near the mouth of Holly River, in the year of 1784. His father was the first white child born in that section of Webster County, West Virginia, created from Greenbrier County, Virginia in 1788.