each pulsation of the heart to the air-cells of the lungs for
vitalization by means of the oxygen inhaled--the only portion of the air
used by the lungs--giving it a constantly renewing power to energize the
whole man. If a cold climate is attended with great humidity, or raw,
chilling winds, the object is defeated and the diseased member
aggravated, as would also be the case even if the climate was not a
cold, raw one, but was a _variable_ cold one; as then the sudden changes
would induce colds, pneumonia, and all the train of ills which terminate
in this dire calamity we are so anxious to avoid.

_Equability_ and _dryness_ are the essentials of a climate in which
consumptives are to receive new or lengthened leases of life.

The following testimony is of such a high value that no apology need be
offered for its introduction here. It is, in the first case, from one
who was sick but is now well, and, in the other, from a party whose
observation and character give weight to opinions.

The able and celebrated divine, the Rev. Horace Bushnell, D.D., of
Hartford, Conn., in a letter to the _Independent_, says:--

"I went to Minnesota early in July, and remained there till the latter
part of the May following. I had spent a winter in Cuba without benefit.
I had spent also nearly a year in California, making a gain in the dry
season and a partial loss in the wet season; returning, however,
sufficiently improved to resume my labors. Breaking down again from this
only partial recovery, I made the experiment now of Minnesota; and
submitting myself, on returning, to a very rigid examination by a
physician who did not know at all what verdict had been passed by other
physicians before, he said, in accordance with their opinions, 'You have