In a memoir published in the Chemical News, vol. xlviii. Page 37, and the Journal of the Chemical Society, 1884, page 94, I gave some account of a peculiar excretory product found in the Sepia's “liver.”The product was found to be albumin in pseudo-crystalline aggregations when examined under the microscope. These bodies are not of a constant occurrence in this organ of the Sepia. Since the publication of the above paper, which is a year and a half ago, I have made a thorough examination of this organ in Sepia, which substaniate and extend the observations of Krukenberg, Fredericq, and Jousset de Bellesme.