Latin Verb 'To Be' and a Plan to Flood a Castle
A conjugation of esse beside a ground plan for inundating a castle
Two unrelated exercises share the leaf. Down the right side runs a conjugation of the Latin verb esse ('to be'), from sum and eram through the subjunctive to the infinitives and participle. The larger drawing is a ground plan of a castle marked with a back-ditch, a canal, an embankment and the points a c and b d, captioned 'a way to flood the castle' — a scheme to gorge water into its defences.
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Flooding a castle by its moat
A ground plan marks a back-ditch, a canal and an embankment, with the points a c and b d, under the note 'a way to flood the castle.' Water is to be gorged into the surrounding works.
Water-defence plan of a castle
The plan lays out the ditches and banks of a fortified castle so that it can be inundated. The scheme couples fortification with a hydraulic action.
Conjugation of the Latin verb 'to be'
A column lists the tenses of esse: sum, eram, fui, fueram, ero, then subjunctive and imperative forms down to the infinitives esse and fuisse and the participle ens. It is a schoolbook grammar exercise.