APPENDIX. 141 



SO treated assumes a mor^i or less dark colour, wliidi is tolerably 

 persistent, but nothing is said as to the exact tint. It is obvious that 

 anacardic acid used for this purpose must be quite free from the 

 acrid cardol that accompanies it in the nut. Herr Gawalowski directs 

 that it should be prepared bj treating the residue from the evapor^a- 

 tion of Q^n ethereal extract of the crushed pericarp with water as 

 long as the washings showed traces of tannic acid, then dissolvino-ifc 



in 15 to 20 parts of alcohol, shaking the solution yigoroiisly with 

 freshly precipitated lead hydrate, filtering and washing the precipitate 

 with alcohol and decomposing the lead salt so obtained with fre^ily 

 prepared sulphide of ummoniuiu and filtering. Upon strongly cooling 

 the filtrate, which contains the ammonium salt of anacardic acid and 

 excess of ammonium sulphide, and treating it \vith sulphuric acid, 

 the acid separates at once as a soft mass, which after being pressed 

 between filter paper is dissolved in ammonia and then remains soluble 

 in water. According to D.ymock (Fe^. MaL 3Iecl TF. J/iri., p. 199), 

 a tar obtained in roasting the nuts, and largel^y used in India for 

 tarring ■ wood, contains about 90 per cent, of anacardic acid txnfl 

 la per cent, of cardoU {Phamu Journ,^ Oct. 3rd;^ 1891.) 



LEGUMI^OS^. 

 A description of the preparation of Catechu or Cutoh^ 



The merchants of ]>[asik, Gangapur, and other towns engage th^ 

 gerviccs of the licUoa's^- for the purpose of mani^facturing Catechu. 

 lois usual with these merchants to descend into the Concan at the 

 termination of the rains. They enter into, a,n arrangement witl^ 

 several of the chief NTaiks to proceed with them |or the purpose of 

 preparing the required quantity of Catechu. As the Katoi'is aro 

 generally In debt to the grain-dealers of the different villages, near 

 ^diich they reside, the traders adjust matters with the grain -dealers 

 ty P^yiiig part, and becoming responsible for the bal.aAce oi the debt, 

 on the return of the Katori to his old residence, l^he trader bein^ 

 joined by the Katoris, the latter select a spot where the Khair trees 

 {Acacia Cafcchic) are numerous. The merchant then begins to erect 

 an extensive shed, but as he has only one or two servants and three 

 or four matchlock men with hini, he employs the Katoris to build it. 



^ 



^ir^f^r or ^fcl^tr the name of a jungle tribe in Western India, whose 



prmcipal occupation in the collection of ^f(T or Catec-hu. 



