DECEMBER. 383 
has been brought from Spain, and the demand for kelp has 
much decreased. 
Many Sea-weeds are used for food; the Rhodomenia par- 
mata is called Dulse by the Scotch, and Dillesk by the 
Irish, and is eaten in both countries. One or two species of 
Porphyra and Ulva, are brought to table under the name of 
Laver; also Alaria esculenta, known in Scotland by the name 
of badderlocks, or honey-ware. In Ireland the Chondrus 
cerispus, called Irish Moss, or carrageen, is an article of food. 
It forms a kind of d/anc-mange, which is very strengthening. 
The Fucus vesiculosus, which is so very common on all our 
coasts, produces, by burning, the valuable medicine called 
Iodine, which can also be procured from sea-water. All 
Sea-weeds are useful as manure, and are therefore exten- 
sively gathered for that purpose. 
T will close this account with a description of an easy 
method of preserving Sea-weeds, particularly the delicate 
kinds ; and a collection, nicely preserved and arranged, is 
very interesting. The specimens being brought home (and 
it is of no consequence if they have shrivelled or become 
dry, as they soon expand agam when placed in water) must 
be put one by one into a large basin of clean water. Have 
ready writing paper divided into pieces, (a quarter of a sheet 
