BY J. H. MAIDEN. 419 



with ferric chloride, which is readily distinguished from the dirty 

 green precipitate produced by kino-tannic acid, the variety exist- 

 ing in the B.P. kino. Percentage of tannic acid, 10 per cent." 



Dr. Wiesner says, " E. citriodora* Hook., easily soluble in 

 water ; solution faintly acid, smells like Bordeaux wine, yellow 

 colour, turbid on cooling. Porous lumps with greenish lustre like 

 Socrotine aloes; mixed with bark." 



" E. maculata, Hook. Exactly like the last." 



This is one of the kinos mentioned as quite suitable for replacing 

 the official kino in Spon's Encyc. of Industrial Arts. It is, how- 

 ever, an unfortunate statement as regards this species, chiefly on 

 account of its colour. 



The kino from Cambewarra has quite a strong odour, something 

 like decomposing apples or pears, or perhaps like a not perfectly 

 sweet wine cask. But while the smell is hard to describe, it is 

 easily recognised, and it appears to be characteristic. 



That from New England has a smell similar to that which 

 common resin gives out when held in the warm hand, while the 

 other two samples have very faint aromatic odours. They all 

 can be crushed between the fingers into a fine powder. 



No. 67. Kino from Cambewarra, collected August, 1886. 

 Height, 100-120 feet. Diarn., 3-4 feet. Distinctly the darkest 

 and most opaque looking of all the samples of this kino examined, 

 with the exception of some fragments of No. 70. It is exceed- 

 ingly brittle, even when in compact masses. The fracture is 

 fairly bright, and shows a greasy lustre. Colour, olive-brown to 

 reddish-brown. Forms a dull-looking powder of an olive-brown 

 colour. 



In cold water it forms a yellow solution of the tint of fresh and 

 pure olive oil, leaving a resinoid catechin residue of a dirty 

 brownish colour, very like soft toffee in appearance and with the 

 odour already referred to. On long continued digestion with 

 water it loses its resinoid texture and almost entirely dissolves. 



* Now considered to be a variety of E. maculata. 

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