Transcriber’s Notes: This article has originally been published in 1861 in “Archiv für die Offiziere der Königlich Preußischen Artillerie- und Ingenieur-Corps.”, 25th year of publication, volume 49, chapters X and XI. Obvious printing errors have been corrected, while minor irregularities in the spelling have been retained.
The original book is printed in Fraktur font. The Umlauts Ae, Oe and Ue have been replaced by Ä, Ö, Ü. The ligature for “etc.” has been replaced by etc.