34 MANUAL OF EQUINE MEDICINE. 



Digestive disturbance is indicated by the dry mouth, 

 coated tongue, thirst, anorexia, and constipation. 



The Urine is scanty, more highly coloured, of higher 

 specific gravity, and its solid constituents are both relatively 

 and absolutely increased. In some instances, however — in 

 acute pneumonia, for example — the chlorides are said to be 

 diminished and sometimes absent. 



General Emaciation takes place in proportion to the 

 intensity and duration of the fever. 



Varieties of Fever are based upon (1) the course and 

 character : 



A fever is said to be continuous when it persists for some 

 time, and with diurnal variations not exceeding the normal 

 limits. It is remittent when the diurnal variations are 

 exaggerated, but the minimum does not reach the normal. 

 It is intermittent when the diurnal variation is exaggerated 

 and the minimum does reach the normal. It is relapsing 

 when the fever is paroxysmal, each paroxysm being sepa- 

 rated by intervals of one or more days, during which the 

 temperature is normal. 



Varieties of Fever are also based upon the (2) severity 

 and character of the febrile symptoms as a whole : 



Fever is called simple when it occurs in a mild or trifling 

 form. It is called inflammatory when it is associated with 

 acute local inflammation ; specific when it depends upon 

 the introduction of a specific poison in the blood (vide ' In- 

 flammation ') ; Malignant when it is very severe and of an 

 exceptionally fatal type. 



Asthenic or Adynamic Fever is characterized by symp- 

 toms of great weakness and prostration, by comparatively 

 slight rise of temperature, and by the skin being covered 

 with cold clammy sweat. 



The Typhoid State denotes a low febrile condition, in 

 which the mouth and tongue become dry and the breath 



