Harry Bell (1905-1976) explains the 7 dispensations all the way from the Garden of Eden to the Millennial Kingdom. The 7 dispensations are 1. Innocence, 2. Conscience, 3. Human government, 4. Promise, 5. Law, 6. Grace, 7. Kingdom. (Message preached in Plas Menai, Llanfairfechan, North Wales, 1961)
An edited transcript of this sermon is available here.