Project Gutenberg 2004-10-05 Public domain in the USA. 439 Various Verschillende Various, Various Scientific American Supplement, No. 821, September 26, 1891 Produced by Victoria Woosley, Don Kretz, Juliet Sutherland and the PG Distributed Proofreaders Team "Scientific American Supplement, No. 821, September 26, 1891" by Various is a scientific publication produced in the late 19th century. This periodical features a collection of articles highlighting advancements and topics in architecture, engineering, medicine, photography, and technology of its time, reflecting the burgeoning interests of society in scientific and practical knowledge. The opening of this issue introduces a variety of articles with diverse topics. It begins with a detailed description of the newly constructed Labor Exchange in Paris, showcasing its architectural features. Subsequent sections cover technical discussions on the construction and maintenance of underground circuits, fire extinguishing methods involving liquid carbon dioxide, and the production of smokeless gunpowder, along with other scientific advancements. This collection serves as a historical snapshot of contemporary scientific thought and practical applications at the end of the 19th century. (This is an automatically generated summary.) Reading ease score: 57.7 (10th to 12th grade). Somewhat difficult to read. en Science -- Periodicals T Text Scientific American Browsing: Computers & Technology Browsing: Encyclopedias/Dictionaries/Reference Browsing: Science - General Category: Science - Chemistry/Biochemistry Category: Engineering & Technology Category: Architecture Category: Health & Medicine Category: Reports & Conference Proceedings 313124 2025-06-06T06:03:20.851961 text/html 283842 2024-10-28T20:39:48 text/html 4729946 2025-06-06T06:03:37.730887 application/epub+zip 4730777 2025-06-06T06:03:27.271052 application/epub+zip 182650 2025-06-06T06:03:21.168928 application/epub+zip 2418038 2025-06-06T06:03:41.559822 application/x-mobipocket-ebook 2384578 2025-06-06T06:03:31.534887 application/x-mobipocket-ebook 245442 2022-09-07T03:26:00.462868 application/x-mobipocket-ebook 295887 2025-06-06T06:03:20.041975 text/plain; charset=us-ascii 276036 2024-10-28T20:39:48 text/plain; charset=us-ascii 295701 2020-12-18T08:55:29 text/plain; charset=us-ascii 296100 2020-12-18T08:55:29 text/plain; charset=us-ascii 20771 2025-06-06T06:03:41.724843 application/rdf+xml 6718 2025-06-06T06:03:21.251917 image/jpeg 1276 2025-06-06T06:03:21.209945 image/jpeg 104756 2020-12-18T08:55:29 application/octet-stream application/zip 5087693 2020-12-18T08:55:29 application/octet-stream application/zip 104751 2020-12-18T08:55:29 application/octet-stream application/zip 5096866 2025-06-06T06:03:20.953931 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog