7 JULY 1967, page 20

Continent Isolated

D. W. BROGAN Printing and the Mind of Man compiled and edited by John Carter and Percy H. Muir (Cas- sell 7 gns) • This interesting and in many, or, at any rate some, ways......

Operation Sea Lion

ALAN CLARK The task of the military historian is made no easier by the wholly different face whioh 'critical battles so often present, at the time, to their separate......

Ends Of The Earth

RONALD HINGLEY Kenneth Harris's About Britain (Hodder and Stoughton, 63s) is a rum mixture. Though a clutch of superb photographs (by Michael Peto) would have made a memorable......