ascribed the primal cause of all pulmonic diseases.

It should not be understood, however, that the _quantity_ of moisture
precipitated in any given district determines of itself the prevalence
or non-prevalence of phthisic complaints; not at all, for we see in
Florida the rain-fall is very great, and as much exceeds that of New
England as the latter does that of Minnesota, and consumption has no
home on the peninsula of Florida. Why it has not, inheres in this fact,
that the climate does not, or rarely, experience any of those violent
and chilling changes of temperature that are almost constantly going on,
especially in the fall, winter, and spring months, and which do the
fatal work of death. But, some one says, the northeast winds reach
Florida, and why do not the inhabitants suffer from it? For the reason
that they are greatly changed in character, becoming mild and only
pleasantly cool in temperature, offering no shock as a rule; and really
the northeast trades, which almost daily blow, are the invigorating and
healthful winds, sweeping away the miasma of the hot season, cooling the
atmosphere, and preserving equability throughout the year. Then there
are other matters; the drainage qualities of the soil, which is so great
on that peninsula; then, too, is the distribution of the falling rain,
whether it is filtered slowly through all the year, keeping things
constantly drowned out, or in a state of flabbiness, or whether it is
mainly confined to a single season or an inconsiderable fraction of the
whole year, as in Florida. These become important inquiries, as all have
a bearing on the question of the _healthfulness_ of climates.

We have stated the rain-fall to be less in Minnesota than in any other
State in the entire Union, with one exception; and while this is true,
it is still great enough for all agricultural uses, coming chiefly in
the summer months, at a time when the crops are growing; and, by the