AMONGST THE SEAWEEDS. 25 



It is very much branched, and the branches are 

 ornamented with curiously shaped air-chambers, 

 which look like the pods of vetches, or of the 

 mustard plant. These pod-like structures are even 

 marked with transverse depressions, just as if there 



FIG. 5. Halidrys siliquosa. 



were actually seeds inside, and so the illusion is 

 increased. 



Several of these Fuci are very useful. The 

 Scotch used to gather them for kelp-making, but 

 that industry has been superseded. They are _still 

 used as manure and as food for cattle, being mixed 

 with meal. In the Hebrides the ashes of the 



