HISTORY of the SOCIETY. 1'f 
months after this, the ground muft be kept conflantly wet, and 
fprinkled befides with water, having cow-dung mixed with it, 
every morning, to prevent the fhoots from being blown off by the 
wind. During the remaining months, the cow-dung may be 
omitted, and the ground only watered twice a-day, morning 
and evening. Grafs muft not be allowed to grow. If ma- 
naged as above, the plants will be perfect in fix months, when - 
they muft be dug up with a long iron bar, to prevent the roots 
being broken, and bound up in fmall bundles, that are to be 
dried and bound into larger bundles, of two maunds, or 150 
pound weight. 
AFTER cutting or beating off the upper part, the roots mutt 
be well powdered, and mixed with four times their quantity of 
water in a pot, and boiled for fome time, to prepare them for 
painting and dying red. For the painted calengary or chintz, 
the painters ufe other ftuffs, together with Ché root, according 
to their convenience, as Brazil wood, to fhow them where the 
red is to be put ; but the Ché root is the principal. 
THE ground that is once planted with Ché root cannot be 
ufed again for the fame purpofe for fix years. 
At this meeting, there was alfo read the firft part of a paper, 
entitled, Experiments and -Obfervations on the Unequal Re- 
frangibility of Light, by Dr Ropert Brair, Regius Profeflor of 
Aftronomy in the Univerfity of Edinburgh. 
Lit. Cl, Mr Fraser Tytxer read the fecond part of his 
Effay on the Principles of Tranflation. This effay has been 
fince publifhed feparately. 
A GENERAL Meeting of the Society was held for the Election 
of Members. [See Appendix to the Hiftory of the Society: ] 
Vou. IIE. f (C) Phyf. 
179% 
Jan. 3. 
Dr Blair on the 
unequal refran- 
gibility of light. 
Jan. 17. 
Mr Frafer Tyt- 
ler on tranfla- 
tion. 
Jan. 24. 
General Meet- 
ingy 
