Considerations on the Stannius Corpuscles and teh Interrenal Tissues of Bony Fishes, Especially Based on Researches into <em>Amia</em>.

The article studies the interrenal tissues of bony fishes especially Amia Calva. There are some confusions, that still reigns on the true significance of kidneys, in fishes. which are homologous with the cortex and the medulla of the mammalian adrenal, and, on the other hand, of those structures, which are known as Stannius corpuscles. The material for these investigations into Amia consisted of series of slides, made several years ago and used for the study of the gonad development in this fish. Entire sections had been made in the smaller specimens; portions of kidney or gonad had been prepared in the larger ones. Stains used were haematoxyline-eosine or Azan.