vuggy porosity. A Dictionary of Earth Sciences. Â© A Dictionary of Earth Sciences 1999, originally published by Oxford University Press 1999. vuggy porosity A form of secondary porosity in which the pore spaces are formed by solution vugs.
Domestic dog (Canis lupus familiaris) The Briard /briËÉËrd/ is an ancient breed of large herding dog, originally from France. A Briard-type dog appears in Gaston Febus' Livre de chasse (Book of the Hunt), written in the 14th century. According to legend, about the same time, a Briard fought a judicial duel with Robert Macaire to avenge its owner's murder, Aubry of Montdidier. Charlemagne, Napoleon, Thomas Jefferson, and Lafayette are all said to have owned Briards.
Briards come in three colors: tawny, grey and black. Tawny is the most common color in the U.S. A tawny may have gray or black hairs in its coat but it will still be considered tawny if it is tawny on any part of its body. One common variant is the dog that is gray or black on its back with tawny legs and feet.