Histoire de St. Louis, p. 39. Paris, 1668, p. 44. Paris, de l'Imprimerie Royale, 1761. The former of these editions is precious for the observations of Ducange; the latter for the pure and original text of Joinville. We must have recourse to that text to discover, that the feu Gregeois was shot with a pile or javeline, from an engine that acted like a sling.