Rev. F. Crombie, pp. 3, 4. Ed. 1867). "Only a single-manuscript copy of
the work is extant, at the end of the Alexandrian manuscript of the
Scriptures. This copy is considerably mutilated. In some passages the
text is manifestly corrupt, and other passages have been suspected of
being interpolations" (Norton's "Genuineness of the Gospels," vol. i, p.
336. Ed. 1847).

The second epistle is rejected on all sides. "It is now generally
regarded as one of the many writings which have been falsely ascribed to
Clement.... The diversity of style clearly points to a different writer
from that of the first epistle" ("Apostolic Fathers," page 53). "The
second epistle ... is not mentioned at all by the earlier Fathers who
refer to the first. Eusebius, who is the first writer who mentions it,
expresses doubt regarding it, while Jerome and Photius state that it was
rejected by the ancients. It is now universally regarded as spurious"
("Supernatural Religion," pp. 220, 221). "There is a second epistle
ascribed to Clement, but we know not that this is as highly approved as
the former, and know not that it has been in use with the ancients.
There are also other writings reported to be his, verbose and of great
length. Lately, and some time ago, those were produced that contain the
dialogues of Peter and Apion, of which, however, not a syllable is
recorded by the primitive Church" (Eusebius' "Eccles. Hist." bk. iii.,
chap. 38). "The first Greek Epistle alone can be confidently pronounced
genuine" (Westcott on the "Canon of the New Testament," p. 24. Ed. 1875).
The first epistle "is the only piece of Clement that can be relied on as
genuine" ("Lardner's Credibility," pt. ii., vol. i., p. 62. Ed. 1734).
"Besides the Epistle of Clement to the Corinthians there is a fragment
of a piece, called his second epistle, which being doubtful, or rather
plainly not Clement's, I don't quote as his." (Ibid, p. 106.)