ginous diabaetes. In the two last the urine is pellucid,
and contains no sugar.

In dropsies the fluid is sometimes absorbed, and poured into the bladder by
the retrograde motions of the urinary lymphatics, as during the exhibition
of digitalis. In the beginning of the dropsies of infirm gouty patients, I
have frequently observed, that they make a large quantity of water for one
night, which relieves them for several days. In these cases the patient
previously feels a fulness about the precordia, with difficult respiration,
and symptoms similar to those of hysteria. Perhaps a previous defect of
absorption takes place in some part of the body in those hysteric cases,
which are relieved by a copious discharge of pale urine. See Diabaetes
explained at large, Section XXIX. 4.

A discharge of blood sometimes attends the diabaetes, which was
occasionally a symptom of that disease in Mr. Brindley, the great navigable
canal maker in this country. Which may be accounted for by the
communication of a lymphatic branch with the gastric branch of the vena
portarum, as discovered by J. F. Meckel. See Section XXVII. 2.

M. M. Alum. Earth of Alum. Cantharides. Calomel. Bark. Steel. Rosin. Opium.
See Sect. XXIX. 4.

7. _Sudor lymphaticus._ Profuse sweats from the inverted motions of the
cutaneous lymphatics, as in some fainting fits, and at the approach of
death; and as perhaps in the sudor anglicanus. See Sect. XXIX. 5. These
sweats are glutinous to the touch, and without increased heat of the skin;
if the part is not covered, the skin becomes cold from the evaporation of
the fluid. These sweats without heat sometimes occur in the act of
vomiting, as in Sect. XXV. 9. and are probably the cause of the cold sweaty
hands of some people. As mentioned in Sect. XXIX. 4. 9. in the case of R.
Davis, which he cured by frequent application of lime. Though it is
possible, that cold sweaty hands may also arise from the want of due
absorption of the perspirable matter effused on them, and that the coldness
may be owing to the greater evaporation in consequence.

The acid sweats described by Dr. Dobson, which he observed in a diabaetic
patient, and ascribes to the chyle effused on the skin, must be ascribed to
the retrograde action of the cutaneous lymphatics. See Sect. XXIX. 6.

8. _Sudor asthmaticus._ The cold sweats in this disease only cover the
head, arms, and breast, and are frequently exceedingly profuse. These
sweats are owing to the in