I found this little book recently. It is beautifully written and illustrated with line drawings. It describes the history, topography and natural history of the isle of Ailsa Craig. The Rev Lawson was a minister in Maybole, Ayrshire. He was a keen historian and wrote several books on the history of Ayrshire.
This map folds out from the front piece and to this day it remains the best map of Ailsa Craig available anywhere.
I like old books.