These soluble salts combine with the albumins in the body, and are deposited as minute granules of silver albuminate in the connective tissue of the skin papillae, serous membranes, the intima of arteries and the kidney.
Histones are a class of albumins soluble in water and acids, but essentially basic in character; hence they are precipitated by alkalies.
The protamines are a wellcharacterized class of albumins found in the ripe spermatozoa of fishes.
The primary products of the dissociation of albumins are the albumoses, characterized by not being coagulable by heat, more soluble than the albumins, having a far less complex composition, and capable of being " salted (7) out " by certain salts, and the peptones, similar to albumoses but not capable of being " salted out "; moreover, peptones are less complex than albumoses.
These substances are combinations of one or more albumins with a radical of an essentially different nature, termed by Kossel a " prosthetic group."