This manuscript is a bound notebook 29 cm X 21 cm x 2.5 cm. The covers are a mottled dull green and black paper on board with a dull green buckram spine binding. The spine has seven slender gold bands and in German Gothic (Frakturschrift) print the title: “Mechanik. Allgemeine Baukunst” (Mechanics. General Architecture). The German print on the spine is separated by a gold floral swag. There are approximately 184 blank pages. The free front endpaper upper right corner is apparently signed by the student making the notes, R. Nachwitz, who attended the lectures during three semesters – Summer 1849 and Winter semester 1849-1850. The first 63 pages begin with general lectures notes on technical mechanics given by a Professor Schneider dated Summer Semester 1849 and Static Mechanics in the Winter Semester 1849/50. Each page side is hand numbered in the upper left or right corners from 1 – 102. The pages are written in black ink in the German Gothic script (Frakturschrift). In the margins are little illustrations of cogs, wheels, weights and pulley systems, trajectories for guns. There is a tiny tissue insert between page 84 and 85 illustrating gun sighting. Following are four blank pages which lead to a different handwritten text signed after eight pages (16 closely written sides) by a Prof. Dr. Ruff. There are no numbers on these pages. In the text are some equations. On the page immediately following is a title page “Allgemeines Baukunst vorgetragen von dem Herrn Professor Meissner in Sommersemester 1849” (General Architecture delivered by Mr. Professor Meissner in Summer semester 1849). In pencil is a notation for [Karl Ludwig Meissner at Coll. Carolinum – Berlin 163 pp.] The paging begins with 1 in upper right corner and is continuous to 160. The handwritten text is in black ink with marginalia of elaborate joints, roof rafters, masonry foundations, railroad engineering especially embankments. On page 62 is a small printed illustration of a log block house and following pages have many equations and tabulations. On page 129 is written “Fortsetzung in Anbindungsemester 1849/50 (Continuation into Carry over semester 1849/50). Pages 130 and 131 have been translated into English by Lehigh University Emeritus Professor Dr. Alexis Ostapenko who attributed these pages to the “theory of vaults/arches.” The pages up to page 160 include the theory of vaulting (arches) with many examples. The next three pages of text have no numbers, however, these pages seem to present civil engineering summations of aspects of buildings and foundations. The remaining pages are blank.