Blackwood convention Blackwood convention In the partnership card game contract bridge, the Blackwood convention is a popular bidding convention that was developed by Easley Blackwood. It is used to explore the partnership's possession of aces, kings and in some variants, the queen of trumps, to judge more precisely whether slam is likely to be a good contract. Two versions of Blackwood are common: "standard" Blackwood, developed by Easley in 1933, and "Roman Key Card" Blackwood ("RKC" or "RKCB"), named for the Italian team which invented it. Standard Blackwood enables one partner to count partnership aces and kings in general. Key card variants
F. E. J. Fry 1957 have become classic works in fisheries science. In 1935 Fry married Irene Marguerite Stewart, and they had three children. F. E. J. Fry Frederick Ernest Joseph Fry (April 17, 1908 – May 22, 1989), commonly known as F. E. J. Fry, was a Canadian ichthyologist and aquatic ecologist. He is known for his early research in physiological ecology and population dynamics in fishes. In the late 1940s, he became the first scientist to model how environmental factors affect the activity of fish. He was a 1959 Guggenheim Fellow, and served as president of several organizations including the American Society