Δ = the reading of M when supported by that of the Codex Urbinas 322, a MS. of the 15th century, preserved in the Vatican Library.
E = Codex Ambrosianus E, 14, a MS. probably of the 14th century, in the Ambrosian Library at Milan.
N = the Codex ex abbatia Florentina n. 49 in the Laurentian Library, written in the 14th or 15th century.
P = No. 8536 of the Latin MSS. in the Bibliothèque Nationale at Paris, a MS. of the 15th century.
R = No. 8538 of the same collection, written in the year 1419. These four MSS. E, N, P, R, with some others form a separate class; and
Σ = the reading of all the MSS. of this class, or of a preponderant number of them.
C = the marginal readings in Cratander’s edition of 1528, drawn from a MS. which is now lost.
Z = the readings of the lost Codex Tornaesianus, Zb denoting the reading as preserved by Bosius, and Zl that testified to by Lambinus.
I = the reading of the editio Jensoniana published at Venice in 1470.
Rom. = the edition published at Rome in 1470.