Nicene and Post-Nicene Fathers, Series II, Vol. II
THE ECCLESIASTICAL HISTORY, BY SOCRATES SCHOLASTICUS.
THE ECCLESIASTICAL HISTORY OF SOZOMEN
Prefatory Remarks by Valesius Concerning the Life and Writings of Sozomen.
Memoir of Sozomen.
Address to the Emperor Theodosius by Salaminius Hermias Sozomen, and Proposal for an Ecclesiastical History.
Website by C.J.S. Hayward, who has a very interesting bookshelf and a Substack well worth visiting. A little curious about his own books? The Angelic Letters and Doxology are both included in C.J.S. Hayward in Under 99 Pages. You may be very interested in the Classic Orthodox Bible.