row in the interval between the
brain and the second or fourth dorsal vertebra, or in disease of the
celiac plexus, which directly presides over the liver. Certain chemical
poisons also cause saccharine urine, notably woorara, strychnia,
morphia, phosphoric acid, alcohol, ether, quinia, chloroform, ammonia,
arsenic, and phlorizin.

_Symptoms._--The symptoms are ardent thirst and profuse secretion of a
pale urine of a high density (1.060 and upward), rapid loss of
condition, scurfy, unthrifty skin, costiveness or irregularity of the
bowels, indigestion, and the presence, in the urine, of a sweet
principle--grape sugar or inosite, or both. This may be most promptly
detected by touching the tip of the tongue with a drop. Sugar may be
detected simply by adding a teaspoonful of liquid yeast to 4 ounces of
the urine and keeping it lightly stopped at a temperature of 70 deg. to 80 deg.
F. for 12 hours, when the sugar will be found to have been changed into
alcohol and carbon dioxid. The loss of density will give indication of
the quantity of sugar transformed; thus a density of 1.035 in a urine
which was formerly 1.060 would indicate about 15 grains of sugar to the
fluid ounce.

Inosite, or muscle sugar, frequently present in the horse's urine, and
even replacing the glucose, is not fermentable. Its presence may be
indicated by its sweetness and the absence of fermentation or by
Gallois's test. Evaporate the suspected urine at a gentle heat almost to
dryness, then add a drop of a solution of mercuric nitrate and evaporate
carefully to dryness, when a yellowish residue is left that is changed
on further cautious heating to a deep rose color, which disappears on
cooling and reappears on heating.

In advanced diabetes, dropsies in the limbs and under the chest and
belly, puffy, swollen eyelids, cataracts, catarrhal inflammation of the
lungs, weak, uncertain gait, and drowsiness may be noted.

_Treatment_ is most satisfactory in cases dependent on some curable
disease of liver, pancreas, lungs, or brain. Thus, in liver diseases, a
run at pasture in warm weather, or in winter a warm, sunny, well-aired
stable, with sufficient clothing and laxatives (sulphate of soda, 1
ounce daily) and alkalies (carbonate of potassium, one-fourth ounce) may
benefit. To this may be added mild blistering, cupping, or even leeching
over the last ribs. Diseases of the brain or pancreas may be treated
according to their indications. The diet should b