U4i 



1flmf\flATlGV (^|t OX'-Qiht. 



Though the fig.is omitted by Tussei-, it was certainly in-, 

 troduced into par gardens bti ore he wrote. • Cardinal Pole 

 isLsni(];tp,hav;t; imported tronx.lrtia.ly thyCtree, which is still 

 grovving in the garden of the arch bishop's»i palace, at Lam- 



A method of 

 keeping gall 

 desiiabk. 



Its uses to ar- 

 tists, 



Metkd^ of- preparmg Ox-'dafi in a concentrated state for 

 . Painters, and for other Uses: by Richard GatHery, 

 No. 14, Mead's-rotv, Lambeth''^. 



SIR. 



I 



T has been long a desideratum to find out a method of 

 preparing ox-gall for the use of painters, so as to avoid the 

 disagreeable smell, which it contracts by keeping in a liquid. 

 state, and at the same time to preserve its useful propertWs. ' 

 I have invented a method of doing it with very little expense*.- 

 which' will be a great saving to those whoiusfe gall^- as it will,' 

 prevent it from putriiying, or breeding maggots. ■. ' • ' 



One gall prepared in my method will sferve an artist a.> 

 long time, as it will leep a great number of years. It witt 

 be a convenient article for us*}', as a small cup of it fiaay be( 

 placed in the same box which contains other colourafVi 

 where it will be always ready. The qualities of gall are 

 well known to artists in water-colours, particularly to those 

 who colour prints, as many colours will not, without gall; 

 wpilc free on such paper, on account of the oil that is used 

 in the printing-ink. 



The artists who make drawings in wateif-colpur?i also use 

 gall in the water which they mix their colour with, as it 

 clears away that greasiness, which arises from moist hands 

 upon paper, and makes the colour work clear and bright. 

 My preparation is ready for use in a few minutes, all that 

 is ntces.sary being to dissolve about the size, of a pea of it in 

 a table-cpoonful of water. 



* 'rlrans. of J5o'c. of Arts, vol. XXVlII, p. 106. Teni guineas were 



voted to Mr. Cathery for this inveDtion. 



It 



