Petri dish Petri dish A Petri dish (sometimes spelled "Petrie Dish" and alternatively known as a Petri plate or cell-culture dish), named after the German bacteriologist Julius Richard Petri, is a shallow cylindrical glass or plastic lidded dish that biologists use to culture cellssuch as bacteriaor small mosses. Modern Petri dishes usually feature rings and/or slots on their lids and bases so that when stacked, they are less prone to sliding off one another. Multiple dishes can also be incorporated into one plastic container to create a "multi-well plate". While glass Petri dishes may be reused after sterilization (via an autoclave at
The Flat Hat leading academic honor society for undergraduates in the arts and sciences. According to the issue of "The Flat Hat" for September 28, 1928, twentieth-century members of the Flat Hat Club were directly responsible for the creation of the newspaper. The badge of the F.H.C. was circular with a Rococo rendering of the coat of arms of the Society on the reverse and "FHC" in a large monogram on the obverse; beneath were a date and motto, "Nov. XI. MDCCL Stabilitas et Fides". "The motto of the Flat Hat Club, Stabilitas et Fides, has always been the motto of The Flat