For the Introductory chapter: (1) Reinaud's account of the Arabic
geographers and their theories in connection with the Greek, in his
edition of Abulfeda, Paris, 1848; (2) Sprenger's Massoudy, 1841; (3)
Edrisi, translated by Amédée Jaubert; (4) Ibn-Batuta (abridgment),
translated by S. Lee, London, 1829; (5) Abulfeda, edited and translated
by Reinaud; (6) Abyrouny's _India_, specially chapters i., 10-14; xvii.,
18-31; (7) texts of Strabo and Ptolemy; (8) Wappäus' _Heinrich der
Seefahrer_, part 1.

I. For Chapter I. (Early Christian Pilgrims): (1) _Itinera et
Descriptiones Terræ Sanctæ_, vols. i. and ii., published by the Société
de l'Orient, Latin, Geneva, 1877 and 1885, which give the original texts
of nearly all the Palestine Pilgrims' memoirs to the death of Bernard
the Wise; (2) the Publications of the Palestine Pilgrims' Text Society;
(3) Thomas Wright's _Early Travels in Palestine_ (Bohn); (4) Avezac's
_Recueil pour Servir à l'histoire de la géographie_; (5) some recent
German studies on the early pilgrim records, _e.g._, Gildemeister on
Antoninus of Placentia.

II. For Chapter II. (The Vikings): (1) Snorro Sturleson's _Heimskringla_
or Sagas of the Norse Kings; (2) Dozy's essays; (3) the, possibly
spurious, _Voyages of the Zeni_, with the Journey of Ivan Bardsen, in
the Hakluyt Society's Publications.

III. For Chapter III. (The Crusades and Land Travel): (1) Publication of
the Palestine Pilgrims' Text Society; (2) Avezac's edition of the
originals in his _Recueil pour Sevir à l'histoire de la géographie_; (3)
Yule's _Cathay and the Way Thither_; (4) Yule's Marco Polo; (5) Benjamin
of Tudela and others in Wright's _Early Travels in Palestine_; (6)
Yule's _Friar Jordanus_; (7) Sir John Mandeville's _Travels_.