Burdock ( Arctium Lappa), Deadly Nightshade 
(. Atropa Belladona ), Bistort ( Polygonum Bistorta ), 
White Bryony ( Bryonia alba). Meadow Saffron 
( Colchicum autumnale ), Dropwort ( Spiraea Filipen- 
dula). Buttercup ( Ranunculus bulbosus), Figwoit 
(ScropJmlaria nodosa), Dwarf Elder ( Sambucus 
ebidus), Common Elder ( Sambucus Nigra), Fool- 
stones (Orchis Morio), Alexanders ( Imperatoria 
O sir lithium). Henbane (Hyoscyamus niger), Broad- 
leaved Dock ( Rumeoc obtusifolius). Sharp-pointed 
Dock ( Rumeoc acutus), Water Dock ( Rumeoc aqua - 
ticus ), Wake Robin ( Arum maculatum), Salep 
( Orchis mascula). Flower de luce or Water flag 
( Iris Pseudacorus), Stinking Gladwyn (Iris fceti - 
dissima), Earthnut (Bunium Bidbocastanum). 
3 . Sugar in its purest state is prepared from the 
expressed juice of the Saccharum qfficinarum, or 
sugar-cane : the acid in this juice is neutralized 
by lime, and the sugar is crystallized by the eva- 
poration of the aqueous parts of the juice, and 
slow-cooling : it is rendered white by the gradual 
filtration of water through it. In the common 
process of manufacture, the whitening or refining 
of sugar is only effected in a great length of time ; 
the water being gradually suffered to percolate 
through a stratum of clay above the sugar. As 
the colouring matter of sugar is soluble in a satu- 
rated solution of sugar, or syrup, it appears that 
refining may be much more rapidly and economi- 
cally performed by the action of syrup on coloured 
sugar. * The sensible properties of sugar are well 
* A French gentleman lately in this country, stated to the 
West India planters, that he was in possession of a very expe= 
