CHAPTER II. 
CURRENTS OF THE 
OCEAN. 
' seas that sweep 
l he three-decker’s oaken mast.” 
Tbnnysok. 
witli a gentle power of respiration t ' el 83 it it were gifted 
slow or rapid, are all determined U “ 5 °'" rW ’ 
Heat increases its £ ch^T ” 
which is dilated or condensed if p “ 1 St T ? °* 
temperature. In wonortion «« H 1 J P H 1011 to the change ol‘ 
descends into the depths until it res l’" * ** lnCreases m density, and 
['our degrees twenty-five minutes below Zo whiehh of 
latitudes at the depth of a tliousnn 1 i ’ , * P rescrves hi all 
If the water continues to Z ll a * M ' D ’™- 
than it was at four decrees twent ^ ZC ' r ° : ^ becomes lighter 
state of congelation — a 'process which T nUUUt f 5 . and ascends '» a 
nature can only take plL at the stfSe^So ° f 
ratureis above four degrees two, I T - b ° ng aS the tem Pe- 
ascends to the surface, while cold'e/wT ’ “ UgH and 
Below four de-roes twent v tw ! Water sints to ^ bottom. 
«■* phenomfSn i. ’Sst T** f f — " : 
‘ “» Wes. The evaporation, which! T 
~nn seas, forming vast r.in-domi at t “ " T 711 ia 
pensated by unceasin- enwont . n 1 p e of the sea > » com- 
**•» «»«P™tion haf „ direct ilCl'!" **** ‘T ** W «- 
“ w “ ter ' - 4 “ i " in “ 
