Author: FALCK, Otto Willem.
Title: Maximes de la fortification irregulière á Utrecht, le xxvi.Janv: 1752. Par O.W.Falck.+ Table des angles et des lignes, dun polijgone fortifié depuis le quarré jusqu'au Dodecagone, sur un coté interieur de 60 verges, ou 120 toises, selon 'anciene manière de fortifier a la Hollandaise selon la methode de S.Stevin, Marollois et autres celebres ingeneiurs de ce tems. Fait á Utrecht ce 18 Fevrier 1752. Par Otton Guillaume Falck. etc.
Description: Manuscript in a fine hand, (size of the pages The first part discusses the possiblities and requirements of fortification in uneven terrain, 18 pages. With 4 black/white illustrations and 1 full-page coloured ground-plan of a fortified city. 18 pages.. The second part, starting from the other side of the book, first discusses the traditional Dutch fortification theory, referring to Stevin etc.; and continues with exemples from the theory of Jacques Ozanam, Bombelle, and "Monsieur le Chevalier de St.Julien'. In this last exemple Falck discusses the pros and contras of "open" versus fortified cities, and mentions that he has resided in the city of Metz for a year. 24 pages. With 3 b/w illustrations and 3 full-page coloured ground-plans. With 70 blank pages between the two treatises. In a later russian half-leather binding. (the page border lines, drawn in ink, damaged by ink corrosion, are repaired). A very fine manuscript treatise on fortification, written and drawn in Utrecht, between 26 January and 5 March 1752. Otto Willem Falck was at that time cadet in the Engineer Corps. With much self-esteem he introduces this work with a definition of his profession: "Ingenieur est un mathematicien habile, expert, et hardi, qui scait l'art de l'architecture militaire, qui va reconnoître la place qu'on veut ataquer; et marque au General ou au Lieutenant General l'endorit le plus foible (etc.) Un ingenieur habile, brave, et experimenté est fort necessaire."

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