Castor oil is expressed from a West Indian shrub, called Palma Christi; and especially from the ripe seeds, which are full of this oil. It is prepared by collecting these ripe seeds, and freeing them from the husks; then bruising and beating them into a paste; they are next boiled in water, when the oil rising to the surface is skimmed off as it continues to appear. The Castor-oil plant is found growing abundantly in Sumatra, particularly near the sea-shore.

Where is Sumatra situated?

In the Oriental Archipelago, off the south eastern part of the continent of Asia.

In what other countries is this plant found?

In some parts of Africa, Syria, and Egypt. It was anciently cultivated in the two last-mentioned countries in large quantities,the seeds being used for the oil they yielded, which was burnt in lamps.

BEAVERS BUILDING THEIR HUTS.

Is not the Palma Christi much affected by soil and situation?

Greatly so. In some places it attains the stature of a tree, and is not a biennial plant, but endures for many years, as in the warm plains of Irak, Arabia, and some parts of Africa.

Biennial, lasting for the space of two years only.