VERDAM, G.J. - Dissertatio in qua, ratione mathematica et physica, quaeritur de mensura, constructione, et munitione aggerum terreorum, ad lacus, fluvios et mare ab agris humilioribus arcenda; ex auctoritate ... H.G. Tydeman, ... submittit, Gideon Janus Verdam, Mydrechto-Batavus. Ad diem 1 Octobris MDCCCXXV...

Lugduni Batavorum, Apud H.W. Hazenberg, Juniorem, 1825. 4to. W. 1 engr. fold. pl. ['G.J.Verdam fecit. Di Veelwaard sculps']. Contemp. hlf. clf., over tree marbled brds., top of spine some imperf.; upper outer hinge partially (4-5cm) splitting.) (Corners and edges of covers rubb.). [n4, A-N4, )2, X2 [theses]. (II (blank) VI, 107, I (errata), IV (Theses) pp.). (Folding plate w. some foxed spots and an unobtrusive watersp. to the upper righthand side). Bierens de Haan nr. 4983. Verdam's Leiden thesis. Gideon Jan Verdam was born at Mijdrecht 1802. A gifted mathematician and phycisist, with a strong preference for military and civil engineering, combined with the the application of steam engines. Promotion at Leiden October 1825 with this thesis on 'Aggerum terreorum' (Bedijking, derzelver afmetingen, aanleg en voorziening [Dikes, their measurements, construction and implementation]. Mannoury, Cat. Wiskundig Genootschap, p. 290: