an inferior attestation and some specially strong internal probability have not been elevated above a secondary place, but treated as ordinary alternative readings. Thus the text of this edition, in that larger sense of the word 'text' which includes the margin, rests exclusively on direct ancient authority, and its primary text rests exclusively on direct ancient authority of the highest kind.
377. Alternative readings are given wherever we do not believe the text to be certain, if the doubt affects only the choice between variations found in existing documents. It is impossible to decide that any probable variation, verbal or real, is too trivial for notice; while it would be improper to admit any variation to a place among alternative readings except on the ground of its probability. Nothing therefore is retained among alternatives which in our judgement, or on final consideration in the judgement of one of us, has no reasonable chance of being right. But no attempt is made to indicate different shades of probability beyond the assignment to the principal and the secondary places respectively: and all probable variations not in some sense orthographical are given alike, without regard to their relative importance. Nor would it be strictly true to say that the secondary or alternative readings are always less probable than the rival primary readings; for sometimes the probabilities have appeared equal or incommensurable, or the estimates which we have severally formed have not been identical. In these cases (compare § 21) precedence has been given to documentary authority as against internal evidence, and also on the whole, though not without many exceptions, to great numerical preponderance of primary documentary authority as against high but narrowly limited attestation.
