Spiritual Treasury is a set of devotional works by Mason. Volume 1 and then Volume 2 are each a year devotional work.
This is a 30 chapter work on various passages of Scripture about the Christian Life.
Chafer Kingdom in History and Prophecy is a study of the Kingdom of God concept in history and prophecy.
This work, Way into the Holiest is 35 chapters on establishing our relationship with a holy God (coming into his holy presence).
EM Bounds Purpose in Prayer in which he explains what is God’s purpose in creating and using in an important way the activity of prayer.