the mesenteric glands, (as the variolous or venereal poisons swell the
subaxillar or inguinal glands): which, during the operation of a cathartic,
is returned into the intestines by the inverted action of the lacteals, and
thus carried out of the system.

Hence we understand the use of vomits or purges, to those who have
swallowed either contagious or poisonous materials, even though exhibited a
day or even two days after such accidents; namely, that by the retrograde
motions of the lacteals and lymphatics, the material still arrested in the
mesenteric, or other glands, may be eliminated from the body.

3. Many instances of milk and chyle found in ulcers are given by Haller,
El. Physiol. t. vii. p. 12, 23, which admit of no other explanation than by
supposing, that the chyle, imbibed by one branch of the absorbent system,
was carried to the ulcer, by the inverted motions of another branch of the
same system.

4. Mrs. P. on the second day after delivery, was seized with a violent
purging, in which, though opiates, mucilages, the bark, and testacea were
profusely used, continued many days, till at length she recovered. During
the time of this purging, no milk could be drawn from her breasts; but the
stools appeared like the curd of milk broken into small pieces. In this
case, was not the milk taken up from the follicles of the pectoral glands,
and thrown on the intestines, by a retrogression of the intestinal
absorbents? for how can we for a moment suspect that the mucous glands of
the intestines could separate pure milk from the blood? Doctor Smelly has
observed, that loose stools, mixed with milk, which is curdled in the
intestines, frequently relieves the turgescency of the breasts of those who
studiously repel their milk. Cases in Midwifery, 43, No. 2. 1.

5. J.F. Meckel observed in a patient, whose urine was in small quantity and
high coloured, that a copious sweat under the arm-pits, of a perfectly
urinous smell, stained the linen; which ceased again when the usual
quantity of urine was discharged by the urethra. Here we must believe from
analogy, that the urine was first secreted in the kidneys, then re-absorbed
by the increased action of the urinary lymphatics, and lastly carried to
the axillae by the retrograde motions of the lymphatic branches of those
parts. As in the jaundice it is necessary, that the bile should first be
secreted by the liver, and re-absorbed into the circulation, to produce the
yellowness