[The water content in mammalian tissues and cells].

Experiments were performed in rats and mice. Tritium oxide was used as a whole body liquid indicator, and the radioisotope chlorine-36 was employed as an extracellular liquid one. The results showed that the water contents varied within small limits, from 0.64 ml/g in ovaries to 0.79 ml/g in testes in the nine organs and tissues under study, the values varying from only 0.68 to 0.74 ml/g in seven of them. The body water content by body mass unit was less (0.62 ml/g) since the bone and adipose tissues contained little water. The tissues under study contained 0.45 to 0.65 ml of water per g of the cellular substance. The values obtained for both species were similar. The characteristics of the whole body water-saline balance for the animals corresponded to those for dogs and humans.