This edition of almost 100 documents pertaining to the marsh district of Lindsey in Lincolnshire derives mainly from collections in the Lincolnshire Archives Office, the British Library and the Public Record Office. They are of particular interest for the history of land drainage and the upkeep of the sea defences. Other topics dealt with include charters concerning the keeping of sheep outside the sea banks; material on local religious houses; extracts from manor court rolls; and will abstracts. Dating from the late 12th century to the first years of the 16th, with a few exceptions they have never previously been published.A.E.B. OWEN is former Keeper of Manuscripts at Cambridge University Library.