THE CELTIC MAGAZINE. No. IV. FEBRUARY 1876. THE STATE OF THE OSSIANIC CONTROVERSY. [CONCLUDED.] IN prosecuting the geological and geographical confirmation of Ossian on which we have lately been engaged, the most convincing proofs and the greatest difficulties alike are to be found in the Frith of Clyde. The levels of the water in that frith penetrating far inland, by Paisley, Rutherglen, and Kilsyth, assumed unconsciously as matter of fact in the text of Ossian, are in such obvious harmony with every word of the poems which relate to that region, that the poems in question cannot otherwise be understood; and we therefore cannot help believing not only that the poems themselves are genuine, but that they represent a geological phenomenon hitherto unsuspected in the world--are, in fact, a revelation in science. On the other hand, the levels thus assumed are so very far beyond anything admitted by geologists within the era assigned, as to seem not only extravagant but incredible; and if they cannot be maintained, their assumption as a fact will destroy the credibility of the poems in which the assumption is made. As regards the authenticity of these poems, however, the assumption itself is conclusive; for the translator did not see it, and could therefore never have fabricated the poems in which it appears. Such poems must have been written by some eye-witness of the fact, who did not require to exaggerate; and the only question as regards reliability now to be settled, is whether he did exaggerate or no? Was the Clyde a sea to Rutherglen, as he seems to affirm? Was the Kelvin a fiord to Kilsyth, or nearly so, as he implies? Was the Leven an estuary to Loch Lomond, as we are bound to conclude? Was the Black Cart a marine canal to Ardrossan in the days of Agricola? If so, the Clyde must have been from 60 to 80 feet above its present level at the date supposed--and then, where was the Roman Wall? Traces of that wall upon the Clyde at a much lower level, it is said, still exist; and the old fortifications between Dunglass and Kilpatrick only 50 feet or thereby above the present level, put an end to the reliability, if not to the authenticity of Ossian. This is the difficulty now to be disposed of; and of which, in passing, we need only say, that if Macpherson had seen it he would certainly have avoided it; and therefore, that whoever was the author of the poems in which it occurs, Macpherson was not.