ON CARRAGEEN MOSS. 
191 
The carrageen is exhausted by boiling for half an hour, 
strained with pressure, and 
Simple syrup of 30° 4,000 grammes 
are added. 
The mixture is heated to reduce it to the weight of the 
syrup employed. 
This syrup appears to be able to be substituted with 
great advantage for syrup of gum arabic. It has a certain 
analogy with syrupum heliciis and with syrup of gum tra- 
gacanth, which may possess in certain respects the same 
medicinal properties. 
5. Paste of Carrageen. 
P — Carrageen, 123 grammes. 
Common water, 12,000 " 
It is boiled for half an hour with two-thirds of the water, 
and strained, and the residue is submitted to a second de- 
coction with the remaining water. After new pressure, 
the two decoctions are united, and there is added to them 
White gum Senegal, 1,000 grammes, 
which must be rapidly mixed in and dissolved with heat. 
The solution is strained ; and there is added to it, 
Loaf sugar, 1,000 grammes, 
then the product is exposed to the long-continued action of 
a. boiling hot sand-bath; and when it is judged sufficiently 
concentrated, it is laid in thin layers in moulds of white 
iron, on the surface of which cacao butter has been spread. 
The concentration is finished in a good oven, which com 
pletes it in a few days to such a point that the paste may 
easily be detached. 
This paste which is very agreeable to the taste, espe- 
cially when it is aromatised with tincture of orange or any 
other aromatic, may be compared to the paste of lichen, and 
deserves even to be preferred to it. 
6. Jelly of Carrageen. 
P — Carrageen, 2 grammes. 
Common water, 250 " 
