One other remark ere I conclude. In the history of the earth which we inhabit, molluscs, fishes, reptiles, mammals, had each in succession their periods of vast duration; and then the human period began,--the period of a fellow worker with God, created in God's own image. What is to be the next advance? Is there to be merely a repetition of the past?--an introduction a second time of man made in the image of God? No. The geologist, in those tables of stone which form his records, finds no example of dynasties once passed away again returning. There has been no repetition of the dynasty of the fish, of the reptile, of the mammal. The dynasty of the future is to have glorified man for its inhabitant; but it is to be the dynasty--"the _kingdom_"--not of glorified man made in the image of God, but of God himself in the form of man. In the doctrine of the two conjoined natures, human and Divine, and in the further doctrine that the terminal dynasty is to be peculiarly the dynasty of HIM in whom the natures are united, we find that required progression beyond which progress cannot go. We find the point of elevation never to be exceeded meetly coincident with the final period never to be terminated,--the infinite in height harmoniously associated with the eternal in duration. Creation and the Creator meet at one point, and in one person. The long ascending line from dead matter to man has been a progress Godwards,--not an asymptotical progress, but destined from the beginning to furnish a point of union; and occupying that point as true God and true man,--as Creator and created,--we recognize the adorable Monarch of all the future! LECTURE FOURTH. THE MOSAIC VISION OF CREATION. The history of creation is introduced into the "Paradise Lost" as a piece of narrative, and forms one of the two great episodes of the poem. Milton represents the common father of the race as "led on" by a desire to know "What within Eden or without was done Before his memory;"