ISO 



BULLETIN OF THE BUREAU OF FISHERIES. 



The charcoal formed during the manufacture of iodine by the wet process, when 

 combined with algin, has been largely used for covering boilers, under the name of 

 carbon cement. Three per cent of algin is sufficient to make the charcoal cohere. 

 and a cool, light, and efficient covering is formed. 



As an article of food, algin has been suggested for thickening soups and 

 puddings, and as a substitute for gum arabic in making lozenges and jujubes. Jt 

 contains about the same percentage of nitrogen as Dutch cheese, and lias a faint, 

 pleasant flavor best expressed by "marine."" In pharmacy it has a place in the 

 emulsifying of oils, as an excipient in [tills, and for refining spirits. 



The cellulose obtained from the Laminarise, as before described, bleaches easily 

 and under pressure becomes very hard, so that it can be easily turned and polished. 

 A good tough paper can also be made from it. 



'Badderlocks" i Marin escutenta). 



1 lulse i >'-f,i:!/ni' mo > duli&). 



Farlow (1876) records that the rough-dried stems of L<niiiii<tri<i saccarhina, L. 

 longicruris, L. flexicaulw, and other large species of Laminaria, under the name of 

 •artificial staghorn". were used for making handles to knives, paper cutters, and 

 oilier ornamental purpuses; and that at one time an attempt was made to establish 

 a manufactory of buttons out of dried Laminaria ^teni^ at Marblehead; but the 

 attempt was given up, as the buttons did not bear washing. 



OTHEE FOOD Al.O.K. 



The number of other alga' susceptible of being prepared as palatable and whole- 

 some foods is very large. Many of the genera utilized for this purpose in .Japan 

 exist in our waters and should be given a thorough trial. 



