Heliopoulus, Demetrius. The Morning Sacrifice: A Brief Explanation of the Divine Liturgy of the Eastern Orthodox Church. Pittsburgh: The Author, 1954. First Edition, First Printing. 
Signed by the author on the dedication page.
Red cloth, 5 1/2 x 8 1/2 inches, 148 clean pp., bottom edge of covers with old faint stain, tight. Former owner's signature on the tp; thin dampstains in the bottom margins of the last few leaves. Good. Hardcover.
Beginning with profuse apologies for condescending to write in English, the author then gives a succinct history of the Greek Orthodox Church and its differences from the Roman, Protestant, and Uniate churches. Then follows a description and explanation of the Divine Liturgy.