?i r~r'
I, AtWM''
1


S1' Bib: ^


,t '


-1


a i


"oene of malaria.


Walton's


information, and indicate how


si to the amount of
kt.ui4whoee reputation


charts


little


give


value


Uflee 6


is to'be


rain-fall as a climatological fact.


is based


Thu


pr.^
If
Ti i %''4
r'\i^
S Ct 1,1


principally on the dryness of


climate, has


nearly one-third


more


ram


in the winter and


months


than


Palatka


while


Alexandria, noted for an


sively moist climate, situated


as it


on a low, sandy


insula


between


the sea


the wet swamp known as Lake


" has lees than


one-third


as much rain as Aiken, and


slightly lees than half as


much


as Palatka.


Men tone also has


more rain than Palatka, and


'tine.


double


The tables of Dr. Baldwin, a


the amount of St. Augus-
most careful observer, give


months


from


November to March


, inclusive, 21.3


hainy days out of 121 days, one


day in sit


i though


it did not


rain all


day on


many of these


days, such


an occurrence being


 not very common in


a semi-tropical


climate, even in


summer.


"Whilst on the northern


lakes," says Forry (op.


cit.), the an-


nual ratio of fair days is only


on the coast of Florida it is


,260, and


Fort


King" (now


Ocala),


interior,


B09."


From twenty-five years' observations, says Dr.


Baldwin,


January


29.5;
year,


March,


an average


20.4;


235 clear days.


elative


climate


Humidity


than


rain-fal


April,


20.3
May,


clear
22.1.


days


February,
the whole


This was in Jacksonville.


.-A much more important constituent of
1 is the amount of moisture suspended in


When


air is


saturated with


moisture,


we say it


-o)ntains 100 per cent.


when one-half


or done-quarter saturated,


:0 or 25 per cent.
Holding more or less
a beder to compare tl


But as air at one temperature is capable of


moisture


than


humidity of


at other


temperatures, in


different climates, we must


^m0 into account the temperature also; and when the calcula-
ctE~mis made with reference to this, we call it the relative humid-
 hat, like the fain-fall, the tables of relative humidity seem


sging very correct idea of


ZM~N.


climatic humidity; and4


.p $ly ee, it is desirable to take into
 i- > 't


 ,
 -f,
~ 4
 '.3


tod4Ams.ma aunrtieo
A-*1 -t' -a n1 -* 'a n-


is* r


p .
-I


, ahe air.


. :-7 hg
. 'f


t.^1 -t


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