1142 FISHERIES OF THE UNITED STATES. [H2] 



Uses of fish-glue — Continued. 



ure of hard glue, but all attempts to preserve the glue in a 

 liquid form, for any length of time, had proved complete fail- 

 ures. 



" The same process of treatment which had proved so successful in 

 preserving the liquid isinglass before referred to was, how- 

 ever, found to be equally capable of preserving glue made 

 from this material, and its manufacture was therefore immedi- 

 ately commenced. 



" Further experiments developed the fact that certain chemicals, 

 when combined with liquid glue so prepared, were protected 

 from oxidation, so that when the glue was thinned down for 

 sizing purposes the chemicals were in the best possible condi- 

 tion for action. 



"One of the most valuable of the special preparations resulting 

 from this discovery is bleaching glue for the sizing' of straw 

 goods. By the use of this glue the process of sulphur bleach- 

 ing is entirely dispensed with, as the sizing itself bleaches the 

 goods so perfectly that not only is half the work saved, but 

 straw and chip goods sized with it, instead of turning yellow, 

 grow whiter ivith age, and possess a gloss unattainable by the 

 use of any other glue. 



" For sizing textile fabrics the No. 20 X is found to be specially valu- 

 able on account of its flexibility and the extreme smoothness 

 which it gives to the yarn, so that, sis a prominent manufact- 

 urer remarked, 'it goes through the looms as if greased.' 



"For the manufacture of table oil-cloths a special grade is prepared 

 called "O. C." glue, by the use of which the oil and paint is 

 prevented from striking through the cloth, while the smooth- 

 ness and flexibility of the goods are very greatly improved. 



"For gummed paper and envelopes the No. 20 F is unequaled, being 

 so extremely adhesive that only a very thin coating need be 

 applied to the paper. It is more economical than any other 

 substance used for the purpose; does not curl the paper; can 

 be printed over without injury to the type ; is pleasant to taste 

 and smell; and being preserved without the use of poisonous 

 acids, will not discolor the paper or make the tongue sore, which 

 is a serious objection to many other glues. 



"For court-plaster it is preferred above all other adhesives, its in- 

 gredients making it not only absolutely harmless, but positively 

 beneficial when used as a dressing for wounds. 



" In the manufacture of artificial flowers it is found to give an elastic, 

 glossy finish, and brings out the colors in a manner unattain- 

 able by the use of any other glue. 



" In taxidermy it is superior to anything known for sticking in 

 feathers and resisting the action of moths and insects. 



