Alcott, who lives entirely on succulent vegetables, states that

he has drunk no fluids for more than a year past, and that he never experiences the sensation of thirst --a similar case is mentioned by Sauvages, of an individual who never thirsted, and passed whole months of the hottest weather without drinking. It is well known that many warm-blooded animals such as mice, quails, parrots, rabbits, &c, drink but very little which is supposed to be owing to ;

the circumstance that they have very large salivary glands, and a larger pancreas in

proportion to the size of their bodies. In general, as we have already remarked, thirst is indicative of diminished fluidity of the blood and when it is not assuaged by

taking liquids into the stomach, or by moistening the mouth with them, or by applying them to the surface, the torment which it induces amounts occasionally almost to phrenzy, and is borne with less patience and greater difficulty than hunger; sometimes inflammation of the mouth and throat and intense fever supervene. Various circumstances connected with the ordinary condition of the body influence the sensation of thirst. Thus it is greater in infancy and childhood than in adult age, and less in old age ; it is greater in women than in men ; it is varied by constitution and temperament ; by climate ; season ; the nature of the diet ; exercise ; passions of mind, and even by imagination. As an aliment, water is of prime necessity to all organized beings. As a solvent, it reduces to a fluid mass all the principles necessary for the growth of animal and vegetable bodies ; which must be in a fluid form,