20 DISEASES CLASS. I. 1. 2. 5. 



sels of the kidneys, and the absorbents of the bladder, have acted 

 with greater energy. When there is much earthy sediment, it 

 shews that the absorbents have acted proportionally stronger, 

 and have consequently left the urine in a less dilute state. In 

 this urine the transparent sediment or cloud is mucous; the 

 opaque sediment is probably coagulable lymph from the blood 

 changed by an animal or chemical process. The floating scum 

 is oil. The angular concretions to the sides of the pot, formed 

 as the urine cools, is microcosmic salt. Does the adhesive blue 

 matter on the sides of the glass, or the blue circle on it at the 

 edge of the upper surface of the urine, consist of Prussian blue? 



5. Diarrhcea calida. Warm Diarrhoea. This species may be 

 divided into three varieties, deduced from their remote causes, 

 under the names of diarrhoea febrilis, diarrhoea crapulosa, and 

 diarrhoea infantum. The febrile diarrhoea appears at the end 

 of fever fits, and is erroneously called critical, like the copious 

 urine, and the sweats; whereas it arises from the increased ac- 

 tion of those secerning organs, which pour their fluids into the 

 intestinal canal, (as the liver, pancreas, and mucous glands,) 

 continuing longer than the increased action of the intestinal ab- 

 sorbents. In this diarrhoea there is no appearance of curdled 

 chyle in the stools, as occurs in cholera. I. 3. 1. 5. 



The diarrhoea crapulosa, or diarrhoea from indigestion, occurs 

 when too great a quantity of food or liquid has been taken; 

 which not being completely digested, stimulates the intestines 

 like any other extraneous acrid material; and thus produces an 

 increase of the secretions into them of mucus, pancreatic juice, 

 and bile. When the contents of the bowels are still more stimu- 

 lant, as when drastic purges, or very putrescent diet, have been 

 taken, a cholera is induced. See Sect. XXIX. 4. 



The diarrhoea infantum, or diarrhoea of infants, is generally 

 owing to too great acidity in their bowels. Milk is found 

 curdled in the stomachs of all animals, old as well as young, and 

 even of carnivorous ones, as of hawks. (Spallanzani.) And 

 it is the gastric juice of the calf, which is employed to curdle 

 milk in the process of making cheese. Milk is the natural food 

 for children, and must curdle in their stomachs previous to di- 

 gestion; and as this curdling of the milk destroys a part of the 

 acid juices of the stomach, there is no reason for discontinuing 

 the use of it, though it is occasionally ejected in a curdled state, 

 A child of a week old, which had been taken from the breast of 

 its dying mother ? and had by some uncommon error been suf- 

 fered to take nonfood but water-gruel, became sick and griped 

 in twenty-four J|purs, and was convulsed on the second day, and 

 died on the third? When all young quadrupeds, as well as 



