SIDELIGHTS ON THE THIRTY YEARS WAR. By Hubert G. R.
Reade. 3 vols. (Kegan Paul. 45s. net.) As its title indicates, this work is net conceived as a compre- hensive treatise. It deals mainly with the period 1614 to 1631,
and includes chapters on topics which have but the slenderest connexion with its subject. Mine the less it is a valuable and an immensely erudite study of certain aspects of the Thirty Years War, and will be valued by the specialist.