cularly satisfactory, though there are some drugs that may be used
with more or less benefit. Chief among them is picric acid, which may be
applied by means of a cloth wrung out of a one per cent. solution of this
substance in water. Another treatment which has some merit, and which has
long enjoyed a certain vogue among both medical men and the laity, is a
combination of equal parts of lime-water with either olive or linseed
oil; this is called carron oil and is applied in the same way as the
picric acid solution. All three of the remedies referred to act largely
by preventing the access of air to the burned surface, and they,
therefore, may be replaced by any bland and non-poisonous substance which
accomplishes like results.

_Accidents from Heat and Cold._--The climate of the United States is
characterized by extreme variations--there being over almost its entire
extent during the winter months a series of "cold waves," during which
excessively low temperatures are often experienced,--particularly in the
northern and western portions of the country. During the summer, on the
other hand, we have almost everywhere periods during which the
temperature goes very high--often accompanied by excessive atmospheric
moisture. As a consequence of these extremes in temperature it could only
be expected that we would often experience bad effects, so that serious
illness, and even death, occasionally result.

Of the two extremes, excessive heat is much the more dangerous, and is by
far more frequently followed by fatal results--particularly in crowded
cities. Fortunately for the dwellers in rural districts the precise
conditions under which excessive heat is followed by serious consequences
are not so frequently encountered as in the more populous centers, and as
a result we find that serious ill effects from high temperatures are by
no means so common in the former as in the latter. There are, however,
two quite well defined and distinct morbid conditions that are the result
of high temperatures, and inasmuch as they differ in their symptoms as
well as in their treatment, it will be necessary to consider them
separately.

_Sunstroke._--Sunstroke is characterized by a rapid onset, the patient
usually complaining of an uncomfortable sense of burning heat and a
feeling of dizziness and depression. Nausea, vomiting, and diarrhoea are
common, frequently an intense headache, and sooner or later a muttering
delirium. The patient's ski