Abstract
1. Follicle cells of the B stage rarely if ever divide during the development of the oöcyte up to and through the A stage, although these cells change in size and shape during that period. 2. The amitotic configuration of the nucleus may be regarded as an adaptation to the secretory activity of the cell, having as its main function the increase of nuclear and nucleolar surface. 3. Droplets of a fatty nature are elaborated by the follicle cells and passed in large numbers into the hæmocoel of the insect. 4. The mitochondria of the follicle cells represent an intermediate stage between lipoid granules appearing in the nucleus of the follicle cell and lipoid granules surrounding the yolk globules of the egg. 5. No inclusions corresponding entirely to current descriptions of Golgi bodies have been observed in egg or follicle cell.