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tI^'Qi


S4


,' IL


special precautions necessary to preserve my instruments from


rust, and boots and. shoes, long neglected, showed


no mould.


At some of the prominent reports in Florida the invalid is con-
ecious of an unpleasant dampness after sunset, when out-of-doors


and not in active motion.


As a rule, these places are usually


surrounded


by large


trees, with


their


usual


funereal


adorn-


ments of Spanish moss,


which may, in some measure,


account


for this. At Pilatka, and at other points farther up the river,
it is not so. This village, with an elevation of twenty-five feet,


has a natural drainage on three sides, a


peculiar soil, and


large trees, only the wild-orange, and other tropical


trees of


slight elevation, simply for ornament.


Here,


when the air is


too cool, one


may be


until


or eleven


o'clock at


night with comfort, though


is not advisable for invalids to


exposed


at this


hour.


The


dews, usually heavy, do


commence rt
commencing


gather until
o fall, and


twelve
falling


o'clock
steadily


mercury then


until


or six.


Until 11 P. M., or


later, last


winter, a


handkerchief


could


swept over the grass-which is here, unlike other localities in
the State, as green as in a Northern village in summer-with-


out being


during


moistened.


the day, there


When


mercury rises to 75"


are fogs;


invalid


or 80


rarely


them


, as they commence


midnight, or later, and are diesi-


pated


by the sun


before


their


breakfast-hour.


A great deal


has been said, by those interested in other winter resorts, about


the fogs and dampness along the river;


but there is really no


more dampness than is useful, indeed necessary, to prevent too


rapid


radiation of heat from


surface of the


earth, and a


consequent too rapid tall of temperature.


Were it not for this


provision of the climate, instead of a fall of ten or twelve de-


agrees, we should, perhaps, have one of thirty to forty.


In the


desert of Sahara, for example,


where the dryness


is absolute,


and radiation at night unrestricted, the temperature falls to
the freeoing-point; and on bur Western Plains the difference
between the diurnal and nocturnal temperature is sometimes


600.


Here while the evaporation of moisture during the day


tempen


the heat, the condensation at night limits the cold.


At Fr Xinr. in th. sume


section of


the State as


Pilatka.