This exceedingly detailed and learned treatise is an investigation of all the known historical sources relating to the birth of Jesus, containing also an inquiry into the Jewish laws and customs on the matter of adultery and divorce at that period. The author comes to the conclusion that Jesus was an illegitimate son of Mary's, the father probably being a Roman soldier, and that Joseph knew of the state of affairs. Whether this be true or not the book is certainly a valuable contribution to the little knowledge we possess on this problem.