Archive for April 23rd, 2006
Concentric Castles
Sunday, April 23rd, 2006The concentric castle was an enclosure castle with an additional curtain wall built, in close proximity, around the entire enclosure. In a sense, the concentric castle consisted of “walls within walls”, where the inner walls, gatehouses and towers were higher than the outer walls, gatehouses and towers. This was so that soldiers fighting from the [...]
Adiantum (Maidenhair Fern)
Sunday, April 23rd, 2006Common Name : Maidenhair Fern Scientific Classification Kingdom Plantae Division Pteridophyta Class Pteridopsida Order Pteridales Family Adiantaceae Genus Adiantum Maidenhair ferns are ferns of the genus Adiantum, which contains about 200 species. It is the a member of the family Pteridaceae, though some researchers place it in its own family, Adiantaceae. The genus name comes [...]
Sarcoptic Mange , “SCABIES”
Sunday, April 23rd, 2006Sarcoptic mange is the name for the skin disease caused by infection with the Sarcoptes scabei mite. Mites are not insects; instead they are more closely related to spiders. They are microscopic and cannot be seen with the naked eye. Adult Sarcoptes scabei mites live 3-4 weeks in the host’s skin. After mating, the female [...]
