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The Materia Medica.

Quercus, Oak,the Bark.

Quercus Robur,L. S.P.

R.

Raphanus rufticanus, Cochlearia Armoracia^Horfe-radiß,

the Root,

Rhabarbarum,Rhubarb,

the Root.

Ribes nigrum,

Black Currant,the Fruit.

Ribes rubrum,Red Currant.,

the Fruit.

Ricinus,

Palma Chrifli,the Seed.

L. S. P.Rheum palmatum,

Ribes nigrum,L. S. P.

Ribes rubrum,L. S. P.

Ricinus communis,L. S.P.

This plant, called alfo JV&gr» Oil-bufi, (Hughes Bari.)grows fpontaneoufly in moft of our Weft-Indian Iflands.

The feed is generally lefs than a common horfebeaß, ovate,comprefled on each fide, covered with a brittle {hell, fpeckledwith brown and yellow, containing a white kernel inclofecl

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