Note 526 — Chapter XIII · SHOCK PROJECTILES
Reading edition
Benedict. Veron., De Rebus Carol. VIII., in Eccardi, Script. Rer. Germ., ii (Jähns).
At the siege of Bilqan in Persia by the Moguls under Prince Hulágu in 1256, stones not being procurable for the machines, wooden shell filled with lead were employed with good effect.—Heft Iqlim, Persian MS. in Bib. Nat., Paris, No. 356, fol. 500.