Walter Laas was a renowned designer of large sailing ships. In this compendium, completed in 1908, he examined the role of large sailing vessels during a time of upheaval. Steam and oil engines had begun to take over ship operations, pushing the economic significance of large sailing ships further into the background. Laas first investigates the different developments in sailing navigation in America, England, France, and Germany, presenting the individual advancements in rigging over a period of 50 years. He then addresses the comparison of various ship propulsion systems, special topics such as the mechanical operation of rigging, and the introduction of auxiliary engines into sailing navigation, drawing a conclusion that remains interesting even from today's perspective. Finally, a comprehensive directory serves as a treat for enthusiasts.