of the blood which flowed out or was forced out by pressure, in the
capillary tubes just described, containing a solution of potassa;
after which I melted the ends with the flame of a candle. With all the
intermittent fever patients whose blood I have collected and diluted
during the febrile stage, properly speaking, I have constantly succeeded
in finding the Limnophysalis hyalina in the blood by microscopic
examination.

It is only necessary for me to mention here that it is of the highest
importance to be able to demonstrate the presence of fungus in the blood
of the circulation and in the urine of patients in whom the diagnosis
is doubtful. The presence of the Limnophysalis hyalina in the urine
indicates that the patient is liable to a relapse, and that his
intermittent fever is not cured, which is important in a prognostic and
therapeutic point of view.

When the question is to prevent the propagation of intermittent fevers,
it is evident that it should be remembered that the Limnophysalis
hyalina enters into the blood by the mucous membrane of the organs of
respiration, of digestion, and the surface of the pulmonary vesicles. We
have also to consider the soil, and the water that is used for drinking.

In regard to the soil, several circumstances are very worthy of
attention. It is desirable, not only to lower as much as possible the
level of the subterranean water (grunawassen) by pipes of deep drainage,
the cleansing, and if there is reason, the enlargement (J. Ory) of
the capacity of the water collectors, besides covering and keeping in
perfect repair the principal ditches in all the secondary valleys to
render the lands wholesome, but also to completely drain the ground,
diverting the rain water and cultivating the land, in the cultivation of