_Jahrbuch des Arch. Inst._ Jahrbuch des k. deutschen Archaeologischen Instituts. Berlin: from 1886. In progress. _Journ. of Hellen. Studies._ The Journal of Hellenic Studies. London: from 1879. In progress. _Mansell._ Photographs of objects in the British Museum, published by W. A. Mansell, 271 Oxford Street, W. _Michaelis._ A. Michaelis, Der Parthenon. Leipsic: 1871. _Michaelis, Anc. Marbles._ A. Michaelis, Ancient Marbles in Great Britain. 1882. _Mitchell._ Lucy M. Mitchell, A History of Ancient Sculpture. 1883. _Mitchell, Selections._ Selections from Ancient Sculpture.... A Supplement to A History of Ancient Sculpture. By Lucy M. Mitchell. 1883. _Mon. dell' Inst._ Monumenti Inediti, pubblicati dall' Instituto di Corrispondenza Archaeologica. Rome, 1829-1886, and Berlin, 1891. _Murray._ A. S. Murray, A History of Greek Sculpture. 1880-3. [Second ed., 1890. The first ed. is quoted, unless otherwise stated.] _Mus. Marbles._ A description of the Collection of Ancient Marbles in the British Museum. 1812-1861. _Perrot & Chipiez._ G. Perrot and C. Chipiez, Histoire de l'Art dans l'Antiquité. Paris: from 1882. In progress. _Prachov._ A. Prachov, Antiquissima Monumenta Xanthiaca. St. Petersburg, 1871. _Rev. Arch._ Revue Archéologique. Paris: from 1844. In progress. _Roehl, I. G. A._ H. Roehl, Inscriptiones Graecae Antiquissimae, praeter Atticas in Attica repertas. Berlin: 1882. _Roemische Mittheilungen._ Mittheilungen des k. deutschen Archaeologischen Instituts, Roemische Abtheilung. Rome: from 1886. In progress. _Specimens._ Specimens of Ancient Sculpture ... selected from different Collections in Great Britain, by the Society of Dilettanti. London: 1809. _Stereoscopic._ Photographs of objects in the British Museum, published by the London Stereoscopic Company, 106 Regent Street, W. _Stuart._ James Stuart and Nicolas Revett, The Antiquities of Athens. London: 1762-1830. [Second ed., 1825-1830. The first ed. is quoted unless otherwise stated.] _Synopsis._ Synopsis of the contents of the British Museum. (Numerous editions.) 1808-1857. [Where a double reference is given, as 189 (284), the number in the parenthesis was used in editions of the Synopsis earlier than 1832.] _Wolters._ Die Gipsabgüsse Antiker Bildwerke in historischer Folge erklärt. Bausteine ... von Carl Friederichs neu bearbeitet von Paul Wolters. Berlin: 1885. BRITISH AND METRIC SYSTEMS COMPARED. 1 inch = .025 metre. 1 foot = .304 metre. 3 feet = .914 metre. 1 metre = 39.37079 inches. INTRODUCTION. The collection of ancient sculpture in marble, included in the Department of Greek and Roman Antiquities in the British Museum, may be said to represent the efforts of more than two centuries, though the foundation of the Museum itself is of a considerably more recent date.[1]