18 DISCOLOURED SEA. [CHAP. i. 



able places, and are thence removed by the set of either wind or 

 water. I confess, however, there is a very great difficnlty in 

 imagining any one spot to be the birthplace of the millions of 

 millions of animalcula and confervas : for whence come the 

 germs at such points? the parent bodies having been distri- 

 buted by the winds and waves over the immense ocean. But on 

 no other hypothesis can I understand their linear grouping. I 

 may add that Scoresby remarks, that green water abounding with 

 pelagic animals is invariably found in a neriaiu part of the Arc- 

 tic Sea. 



