...quarried at the time of the erection of St. Paul's Cathedral in London, and are now lying in the Island of Portland, near the quarries from whence they were obtained. These blocks are invariably found to be covered with lichens ; and, although they have been exposed to all the vicissitudes...

...of stone, that were quarried at the time of the erection of St. Paul's Cathedral, London, and which are now lying in the Isle of Portland, near the quarries from whence they were obtained. These blocks are invariably found to be covered with lichens, and, although they have been exposed to all the vicissitudes...

...blocks of stone, that were nrried at the time of the erection of St. Paul's Cathedral, don, and which are now lying in the Isle of Portland, near the quarries from whence they were obtained. These blocks are invariably found to be covered with lichens, and, although they have been exposed to all the vicissitudes...

...of stone that were quarried at the time of the ereetion of St. Panl's Cathedral in London, and whieh are now lying in the Isle of Portland, near the quarries from whenee they were obtained. These bloeks are invariably found to be eovered with liehens, and although...

...were quarried at the time of the erection of St. Paul's Cathedral, and are now lying in the Island of Portland, near the quarries from whence they were...vicissitudes of a marine atmosphere for more than 180 years, they still exhibit, beneath their lichen, their original form, even to the marks of the...

...were quarried at the time of the erection of St. Paul's Cathedral, and are now lying in the Island of Portland, near the quarries from whence they were...lichens, and though they have been exposed to all the vicissitiiHes of a marine atmosphere for more than 180 years, they still exhibit, beneath their lichen,...