Printed chart showing the relative situation of Portland, Portsmouth and Plymouth with Cherbourg, to show the practicability of a breakwater for Portland Roads.

Printed chart showing the relative situation of Portland, Portsmouth and Plymouth with Cherbourg, to show the practicability of a breakwater for Portland Roads, by John Harvey, junior. Published by B. Benson, Weymouth, and dedicated to The Right Honourable Lord Viscount Melville, undated.