OCEAN PLAINvS 



109 



color, momentary revelations of pictorial po- 

 etry without literary meaning or association; 

 and yet very insistent revelations, very striking ' 

 impressions. We do not readily define them 

 but vre feel their effect upon us, nevertheless. 

 It is an effect analogous perhaps to that pro- 

 duced by music — pale music in a minor key, 

 dreamy music that moves in slow-heaving ca- 

 dences or faints in realms of sun-shot haze or 

 gleams in chords of lustrous silver. 



The division line between mist and fog lies 

 somewhere in the aerial envelope. The same 

 indefinite line separates fog from cloud, though 

 they are practically one and the same thing. 

 Both are visible vapors, the one several thou- 

 sand feet in the air, the other lying along the 

 surface of the earth or sea. Both differ from 

 mist only in that they are more concentrated 

 in form and strata. And there are beauties of 

 color in the fog as in the mist. It is by no 

 means such an unalloyed evil as the nervous 

 person who dreads a steamer collision fancies. 

 Instead of dull leaden hues the fog is often 

 luminous with pale blues, lilacs, mauves, and 

 silvers; and it is never remotely approached to 

 black, though the term " black fog " is applied 

 to banks denser than the ordinary. The colors 

 are not, however, usually seen because people 



Summer 

 nights on 

 the ^ii gam 



Fogs at 

 sea. 



Black fog 



