(Adam and Charles Black.)—The value of the first of these
works, which has been before the public thirty years, is very well known, but it has a formidable competitor in the manual of Professor Jukes.
Dealing much more curtly than his predecessor with the subject of lithology, he has more space for detailing the changes of the
earth's surface. His book is therefore far more readable than Pro- fessor Phillips,' and better adapted for schools. For older persons who are beginning the study, and choose to begin with a very elementary manual, the Oxford guide may, perhaps, be preferable.