AlpeTiK^s RaKOjivBlas iirvroiirj, 1. 20. of the Greek MSS. in twenty-five volumes, and of course no such photograph exists as he has described. SERVICE-BOOKS. 27 Paul \ Others of these apocrypha are extant in Arabic, but the Syriac originals have not yet been recovered. To these may be added such works as the Didascalia Apostolorum, edited (anonymously) by P. de Lagarde in 1854; extracts from the Constitutioties Apostolorum, ascribed to Clement, in the same editor's Reliquice Juris Eccles. Antiq., pp. 2-32, 44-60 ; and the Doctrina Apostolorum, in Cureton's Ancie^it Syriac Documents, pp. 24-35, and in Reliquice Juris Eccles. Antiq. (under the title of Doctrina Addcei), pp. 32-44. Into a description of the service-books of the Syrian Church in its different sects-Nestorians, Jacobites, Maronites, and Malkiteswe cannot here enter'^. The bare enumeration of the various psalters, lectionaries, missals, &c., would far exceed 1 Translated by Zingerle in Heidenheim's Vierteljahrsschrift, iv. p. 139 sq., and by Perkins, Journal of the American Oriental Society, viii. p. 182 sq. ; reprinted in the
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