Abstract
The secretory granules of the corpuscular cells of STANNIUS and the renal juxtaglomerular cells (JG cells) were examined histologically, using five species of teleosts. The granules in the corpuscular cells are stainable by the BOWIE'S method which is used exculsively far the staining of JG cell granules. However, remarkable differences were detected in the staining of both kinds of granules when the following stains were used: GOMORI'S chrome-hematoxylin and phloxine, HEIDENHAIN'S iron-hematoxylin, and PAS stain. Therefore, it may be concluded that the JG cells and the corpuscles of STANNIUS, histologically speaking, are composed of different kinds of cells.
