[10] This figure is obtained by adding the height of the lowest oar-port above the water, viz. 3 ft., to 2 ft. 6 in., which is twice the minimum vertical interval between successive banks.
[11] This illustration is taken from Charnock's "History of Marine Architecture." It is copied by Charnock from Basius, who, in his turn, has evidently founded it on the sculptures on Trajan's Column.
[12] "Cæsar, de Bello Gallico," bk. iii. chap. 13.
[13] Vol. xxii., p. 298. Paper by Mr. Colin Archer.
[14] "Archéologie Navale."
[15] W. S. Lindsay, "History of Merchant Shipping and Ancient Commerce," vol. ii. p. 4.
[16] The details, as related by various authorities, differ slightly.
[17] According to some accounts there were 1,497 bronze and 934 iron guns of all calibres.