[Illustration: SALT-MINE AT NORTHWICH.

We here give an engraving of a salt-mine at Northwich, Cheshire, where both salt-mines and brine-springs are exceedingly productive, and are believed to have been wrought so far back as during the occupation of Britain by the Romans.

We here give an engraving of a salt-mine at Northwich, Cheshire, where both salt-mines and brine-springs are exceedingly productive, and are believed to have been wrought so far back as during the occupation of Britain by the Romans.

Thence by Chester and Northwich (where we descended a salt-mine) to Macclesfield.

In this second edition, the plants Amaryllis, Orchis, and Cannabis are inserted with two additional prints of flowers; some alterations are made in Gloriosa, and Tulipa; and the description of the Salt-mines in Poland is removed to the first poem on the Economy of Vegetation.

The country is fertile; great crops of cereals are raised; there are forests of pine and oak, and extensive pasture lands; vast salt-mines are wrought at Cracow; silver, iron, copper, and lead in other parts.