first edition. "Babbage's final book, and the principal source, along with Babbage's Calculating Engines, of our knowledge of Babbage's Difference and Analytical Engines . . . The frontispiece shows the only portion of Babbage's first Difference Engine to be constructed, and the final four pages contain Babbage's own bibliography of his published works"--Hook & Norman, Origins of Cyberspace 84. DSB I, 356.
Aliquam vulputate ornare congue. Vestibulum maximus, libero in placerat faucibus, risus nisl molestie massa, ut maximus metus lectus vel lorem.