On land and SEA AIR. 271 



purifies the air, it is rather by adding a fomewhat than 

 by abforbing any confiderablc quantity of effluvia float- 

 ing therein. Though by this 1 do not mean to fay that 

 certain matters foreign to our atmofphere do not float 

 therein on land. If they exift, perhaps they may be fub- 

 jed to abforption by water. 



TABLE 



