Lea. V. 269 
A 
DISCOURSE 
COLOURS 
PLANES. 
Read before the Royal Society, May 3. 1677. 
CHAP. I 
Of the COLOURS of Plants in their Natural 
Eflate. 
AVING formerly made fome Objeractions OF Lye 4.2; 
the Colours of Plants 5 I fall now crave leave to ¿pq Ana 
add fome more to them of the like Nature. None of EPA 
of which, nor any of the Conclufions thence dedu- 56 FN 
ced, will, if duly confidered, appear contrary to * 9% e 
the Hypothefis and Experiments of Mr. Boyle, Mi 
Des Cartes, Mr. Hook, Mr. Newton, or any 
concerning Colours. As not having relpe& to 
the Colows of all Bodies in general. Nor to the Body of Colour, 
which is Light 3 Nor to the formal notion of Colours (ad extra) as the 
‚Rays of Light are moved or mixed : But to thofë Materials, which are 
principally neceflary to their Production in Plants. Concerning which, 
the prefent Difomfe Shall be reduced to thefe Three general Heads, 
fil. 1323 
