Typescript of "Inborn Metabolic Errors Causing Mental Abnormality" Typescript of "Inborn metabolic errors causing mental abnormality" for Penrose's article in Neurochemistry: The Chemical Dynamics of Brain and Nerve , edited by K A C Elliott, I H Page, and J H Quastel, (Springfield, Illinois: Charles C Thomas, 1955.) Also includes correspondence with the Jewish Hospital Medical Society and J H Quastel. 1949-1951