I79% account of Rufstan dyes. 295 
: GREEN, 
This colour they obtain from the tops of the arun= 
@o calamagrostis, branched reed-grafs, native of Scot- 
land. 
; BLE. ' 
From a species of isatis ; but our academicians did 
not obtain the manner of using either one or other of 
these plants. 
If these patriarchal family operations can be of 
any service to one clafs,. or afford amusement to ano- 
ther, of your readers,the purpose will be answered of 
your most obedient servant. . 
Imperial cadet corps, ) 
in St. Petersburgh t 
ArcrTicus. 
Dec. 2. 17:92- 
OTS 
Observations on the above. 
Tue foregoing remarks cannot fail to prove inte= 
resting to many of our readers ; and were the atten- 
tion of men of science more frequently turned to am 
investigation of the native dyes, that men in different 
parts of the world have discovered, many would be 
the advantages that would result from it. In the’ 
East Indies the natives, by procefses very simple, 
produce dyes, that European manufacturers have in’ 
vain endeavoured to imitate. The paints of China 
cannot be paralleled in Europe, for the sweetnefs and 
brilliancy of their colours, all of which there is good 
reason to believe are extracted from the vegetable 
kingdom only. The Indians of America, it is also 
well known, have many beautiful dyes, with which 
we are unacquainted; and in Africa the negroes, 
and the natives of the Brasils, have many plants 
that furnifh ‘inestimable dyes, which are’ total. 
