Studies on the Bar Series of Drosophila V. The Effects of Reduced Atmospheric Pressure and Oxygen on Facet Number in Bar-Eyed Drosophila

Abstract

HE investigations which have been directed toward a clarification T of the kinetics of facet determination in the Bar series of alleles in Drosophila have, heretofore, been concerned largely with the use of temperature as a suitable and easiIy controlled variable. The manner in which temperature data have been used is clearly set forth in the work of a number of investigators, notably,