Minuscule 312 (in the Gregory-Aland numbering), α 187 (Soden),[1] is a Greek minuscule manuscript of the New Testament, on parchment. Palaeographically it has been assigned to the 11th century.[2] Formerly it was labelled by 22a and 75p. It has marginalia.
The codex contains the text of the Acts of the Apostles, Catholic epistles, and Pauline epistles on 145 + 172 parchment leaves with lacunae (Acts 1:1-11; 3:16-4:2; Hebrews 6:7-7:1). It is written in one column per page, in 22 lines per page.[2]
The text is divided according to the Greek, Ancient (to 1453);: κεφαλαια (chapters), whose numbers are given at the margin.
It contains lists of the Greek, Ancient (to 1453);: κεφαλαια (tables of contents) before each book, prolegomena, Synaxarion. Lectionary markings at the margin were added by a later hand.[3]
Kurt Aland did not place the text of this codex in any Category.[4]
Formerly the manuscript belonged to the monastery Constantos, then to Richard Mead. Wettstein saw it in 1746 in London. It was examined by Askew, Griesbach, Bloomfeld, and Gregory.[5] Griesbach collated its text in Pauline epistles.[3] C. R. Gregory saw it in 1883.[5] Formerly it was labelled by 22a and 75p. In 1908 Gregory gave number 312 for it.[1]
The manuscript is currently housed at the British Library (Add MS 5115-5116) in London.[2]