20 DISEASES CLASS I. i. 2. 5, 



fels of the kidneys, and the abforbents of the bladder, have a^e t 

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

 ihews, that the abforbents have acled proportionally ftronger, 

 and have confequently left the urine in a lefs dilute frate. Iii 

 this urine the tranfparent fediment or cloud is mucous > the 

 opaque fediment is probably coagulable lymph from the blood 

 changed by an animal or chemical procefs. The floating fcum 

 is oil. The angular concretions to the fides of the pot, iormed 

 as the urine cools, is microcofmic fait. )oes the adhefive blue 

 matter on the fides of the glafs, or the blue circle on it at the 

 edge of the upper furface of the urine, confift of Pruffian blue ? 



5. Diarrhoea calida. Warm diarrhoea. This fpecies may 

 be divided into three varieties, deduced from their remote caufes, 

 under the names of diarrhoea febrilis, diarrhoea crapulofa, and 

 diarrhoea infantum. The febrile diarrhoea appears at the end 

 of fever-fits, and is erroneoufly called critical, like the copious 

 urine, and the fweats ; whereas it arifes from the increafed action 

 of thofe fecerning organs, which pour their fluids into the intef- 

 tinal canal (as the liver, pancreas, and mucous glands,) contin- 

 uing longer than the increafed action of the inteftinal abforbents. 

 In this diarrhoea there is no appearance of curdled chyle in th$ 

 ilools, as occurs in cholera. I. 3. i. 5. 



The diarrhoea crapulofa^ or diarrhoea from indigeftion, occurs 

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

 which not being completely digeiled, flimulates the inteftines 

 like any other extraneous acrid material ; and thus produces an 

 increafe of the fecretions into them of mucus, pancreatic juice, 

 and bile. When the contents of fhe bowels are flill more flim- 

 ulant, as when draftic purges, or very putrefcent diet, have been 

 taken, a cholera is induced. See Seel:. XXIX. 4. 



The diarrhoea infafitum, or diarrhoea of infants, is generally 

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

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

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

 at is the gaftric juice of the calf, which is employed to curdle 

 milk in the procefs of making cheefe. Milk is the natural food 

 for children, and muft curdle in their ftomachs previous to di- 

 geflion ; and as this curdling of the milk deftroys a part of the 

 acid juices of the ftomach, there is no reafon for difcontinuing 

 the ufe of it, though it is occafionally ejected in a curdled ftate. 

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

 its dying mother, and had by forne uncommon error been fuf- 

 fered to take no food but water-gruel, became fick and griped 

 in twenty-four hours, and was convulfed on the fecond day, and 

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



children, 



