7 JULY 1928, Page 24

" Under our feet there is a world to win,"

thinks Mr. J. Leslie Mitchell in Hanno (Kegan Paul. 2s. 6d.). Not only on the surface of our globe (which we are told is not round) but in its hollow (?) core, and in interplanetary space thexe are limitless domains for the explorers of the future. Mr. Mitchell has gathered together such interesting and stimulating material that it seems a pity he should not write more simply and that he should admit inaccuracies and errors of taste to his text. Still, this is a stimulating volume, and a correction to those who think there are no more worlds to conquer.

* * *