

Trocefs for extraSling a Gum from Lichefis. 595 ■ 



Statement of the Benefits and Advantages to enfue to Indi^ 

 viduals and to the United Kingdom of Great Britain and 

 Ireland, from Lord Dundonald's DiJ'covery of extracting 

 Gum from the Lichen or Tree M'jJs, as a Suhjlitute for 

 Gum Senegal and other foreign Gums, 



GUM Senegal, or other foreign gums, have hitherto been 

 indifpenfably requisite for printing 7ine goods, and thole of 

 light (hades of colour. 



No proper fubftitutc had been found to anfwer for this part 

 of calico printing until Lord Dundonald difcovered the pre- 

 paring gum from the lichen. 



Gum Senegal, and foreign gums, are at times fcarce, and 

 difficult to be procured. 



The fettlemcnt of Senegambia belongs to \he French : 

 they have a monopoly of gum Senegal. The price lince the 

 war has rifen from 150/. to 400/. per ton. 



Gum from the lichen may, all charges included, be pre- 

 pared at i-i4th part of the prefent price of gum Senegal, 

 and at i-6th of the peace-time price. 



The united kingdoms may now be faid to be independent 

 of foreign (tates for the gum requifite for their manufactures, 

 fuch as calico printing, preparation of ink, ftaining and ma- 

 nufacture of paper, drefling and ftiffening filks, &c. &c. 

 And, in confequence of Lord Dundonald's difcovery, large 

 funis of money, formerly lent abroad for the purehafe of 

 gum, will, in future, be faved. 



Starch and wheaten flour have hitherto been ufed as cheap 

 fubftitutes for gum in printing coarfe goods, or to fix on other 

 printed goods, the mordants, and fome of the dyeing mate- 

 rials, for deep (hades of colour. But there is now reafon to 

 expect, as gum from the lichen will cod lefs than thofe arti- 

 cles, particularly (larch, it will be ufed in their ftead, and fo 

 prove the means of faving or ^economizing a considerable 

 portion of wheat and wheaten fjour at prefent confumed in 

 calico printing. 



The collecting the lichen from the foreft and fruit trees 

 and hedges, will give employment to a number of poor 

 people, principally women and children. 



A cheap fupply of gum from the lichen may, perhaps, in 

 feveral manufactures, fupcrfede the ufq of the higher priced 

 article of glue or (ize, which often has a very difagreeable 

 Imell. 



Gum from the lichen may, perhaps, be ufed as a dreffing 

 in weaving, particularly fine good?, either by itfelf or when 



T 4. made 



