[16.] S. Singer, “Arabische und europäische Poesie im Mittelalter,” _Zeitschrift f. deutsche Philologie_, LII (April, 1927); K. Burdach, “Über den Ursprung des mittelalterichen Minnesangs, etc.” in _Vorspiel_ I (Halle, 1925) 311; A. F. von Schack, _Poesie und Kunst der Araber etc_., 2 vols. (Stuttgart, 1877) II, 101-5. [17.] C. F. Brown, _Religious Lyrics of the 14th Century_ (Oxford, 1924). Translations of William Herebert (d. 1333) xiii. [18.] _Ad honorem Regis summi_, translation of first line: R. E. Messenger. See C. Daux, _Les Chansons des Pèlerins de St. Jacques_ (Montauban, 1899). [19.] A. S. Walpole, _Early Latin Hymns_, (ch. 1, note 3) 87-92. [20.] E. Rodgers, _Discussion of Holidays in the Later Middle Ages_ (New York 1940) 33. Miss Rodgers sums up the evidence here, reaching an affirmative conclusion. [21.] L. Thorndike, “Elementary and Secondary Education in the Middle Ages,” _Speculum_, 15 (1940) 400-8, p. 401. [22.] W. O. Wehrle, _Macaronic Hymn Tradition etc_. (Washington, 1933). Chapter Six Late Middle Ages: Processional Hymns [1.] _Matt_. 21: 4-ll; _Mark_ 11: 7-11; _Luke_ 19: 35-38; _John_ 12: 12-5. [2.] Basil, _Ep_. 207, _Ad Neocaes, MPG_ 32. 765; Ambrose, _Ep._ 40. 16, _Ad Theodosium, MPL_ 16. 1107; Sozomen, _Hist. Eccles._ VIII, 8; see also Tertullian, _Ad uxorem_, II, 4, MPL 1. 1294. [3.] _S. Silviae, quae fertur, Peregrinatio ad loca sancta, in Itinera Hierosolymitana, Saeculi III-VIII_, ed. P. Geyer (Vindobonae, 1898) _CSEL_ 39. 35-101. [4.] _Ibid._ XXIV, 1-7, 8-12; XXV, 7; XXVI; XXXI; XL, 1-2. [5.] A. Bludau, _Die Pilgerreise der Aetheria, Studien zur Gesch. u. Kultur d. Altertums XV_, 1/2, (Paderborn, 1927) 56. Translation, Robert Bridges. [6.] A. Baumstark, _Die Idiomela der byzantinischen Karfreitagshoren etc._ Reviewed in _Jahrbuch f. Liturgiewissenschaft_, 10 (1930) 339-40. [7.] P. Batiffol, _Études de liturgie et d’archéologie chrétienne_, (Paris, 1919) ch. VI, _La Chandeleur_, p. 200. [8.] Ambrose, _Ep_. 11(53), _MPL_ 17. 743-4; Augustine, _De Civ. Dei_ 22. 8; _Conf._ 9. 7; See also the hymn _Grates tibi, Jesu, novas_, attributed to Ambrose, _A. H._ 50. 17. [9.] G. H. Cobb, “Early Catholic Outdoor Processions,” _The Month_, 148 (1926) 539-542. [10.] For Mamertus, see Greg. Turonen., _Hist. franc._ 2. 34, _MPL_ 71. 230-32. _Councils_. Council of Orleans, 511, canon 17, Mansi VIII, 355; Council of Girona, 517, _Capit._ 2 & 3, Mansi, VIII, 549; see also 17th Council of Toledo, 694, _Capit._ 6, Mansi XII, 99-100. _Litaniae maiores_, Greg. Magnus, _Ep._ V, 11, Litany on Feast of St. John Baptist, _MPL_ 77, 732-3; _Litania septiformis_, Greg. Turonen., _Hist. franc._ 10, 1, _MPL_ 71. 519-20; Joh. Diac., _Vita Greg. Magn._, 1. 41, 42, MPL 75. 80. [11.] L. Duchesne, _Christian Worship_, (London, 1904) 240, 515.