Cell culture molecular biology primarily involves cultures of cells on flat plastic dishes. This technique is known as two-dimensional (2D) cell culture, and was first developed by Wilhelm Roux who, in 1885, removed a portion of the medullary plate of an embryonic chicken and maintained it in warm saline for several days on a flat glass plate. From the advance of polymer technology arose today's standard plastic dish for 2D cell culture, commonly known as the Petri dish. Julius Richard Petri, a German bacteriologist, is generally credited with this invention while working as an assistant to Robert Koch. Various researchers today also
The Circular Staircase Selig from using the title. "The Bat" led to several adaptations of its own. In 1926 Rinehart licensed a novelization of "The Bat", published under her name but ghostwritten by Stephen Vincent Benét, partly to distance "The Bat" from "The Circular Staircase". It was filmed three times: as the 1926 silent film "The Bat", as the 1930 talking film "The Bat Whispers", and as the 1959 horror picture "The Bat". The Circular Staircase The Circular Staircase is a mystery novel by American writer Mary Roberts Rinehart. The story follows dowager Rachel Innes as she thwarts a series of strange crimes