2$6 Vrocefs for extracting a Gum from Lichens. 



made into a kind of (bap, according to directions given in a 

 feparate publication. 



Lallly, It is probable that all the benefits to enfue from 

 the difcovery of procuring gum frpiu the lichen may not yet 

 have occurred, it being well known that there is no art or 

 difcovery that is not the parent or filler of fome other. 



Statement of the Expevfes of collecting the Lichen or Tree ' 

 Mofsi preparing the Gummy Extract, and Amount of the 

 Saving to accrue to Calico Printers hy ufing it as a Syb- 

 flitute for Gum Senegal, reckoning Gum Senegal at dif- 

 ferent Prices, from /k to 20I. per cwt. r t Sf J 9 

 To gathering j cwt. of lichen, at 2d. per lb. 0188 

 To carriage, on an average diitance of 30 miles,"} 



at 2s. per cwt. / - - J ■ 



To 7lb. pearl allies, at 56s. per cwt. - 036 



To boiling ditto, fay half the price of gathering 094 



1 i.3 6 



But fay the lichen cod in gathering 3d. then ^ 

 there falls to be added - - 5 



Charges on the cwt. of lichen - £. 2 2 10 



But with a view to a comparative itatement with gum Se- 

 negal, this mull be reduced i-3d, as a cwt. of dry lichen has 

 been found to do as much work, in calico printing, as one 

 cwt. and a half of gum Senegal. 



In all, the value of the gum extract, on which a compa- 

 rifon is to be made, after deducting one-third, will only 

 coft, fay 29 j. 



Thus, when o-um Senegal is at 20/. 1 . u r,i . 



per cwt. a fubftitute iftUe had at j It1 4* of that F lce - 

 When at £. 15, at ]-ioth 

 '£*, 10, at i-7th 

 £. 7, at 1.5th; 

 And, on an average of the peace and war time prices, at 

 J -Oth of the price of gum Senegal. 



An individual in the calico printing line informed Lord 

 Dundonald, laft November, that at the then prices, viz. 15/. 

 per cwt. the fupply of gum Senegal for his works coil him 

 upwards of 5000/. per annum. 



Say - £*5000 



An equal quantity of gum from the lichen, at? 



the price dated, would coft, fay - 3 ^ 



In all, a faving annually of £. 4500 



And 



