4 seq., Aristarchus had the common reading ' taut, but another Homeric critic of note, Zenodotus, read for ' raoL, and this is supported by the obvious imitation in Aeschylus, Supplices, 800, who has The support which a reading gains from the evidence of the directly transmitted text and from the auxiliary testimonia may be called its documental probability.
To restore a text from the documental evidence available we must know and weigh the causes which tend to vitiate this evidence in its various kinds.
23 a considerations of transcriptional or documental probability.
There is, however, one class of cases in which no conclusion may be drawn, documental and intrinsic probability both failing us.
Legitimate doubt arises when the evidence pro et contra of documental and intrinsic probability is equal, or nearly equal, or when documental probability points strongly to one side and intrinsic probability to another.
When it is conscientiously obtained, it is arrived at by handi capping, more or less heavily, intrinsic probability as compared with documental probability, or by raising the minimum of probability which shall qualify a reading for admission into the text until it is in agreement with the notions of the editor.