Sholes and Glidden typewriter seeking to diversify, Remington further refined the typewriter before finally placing it on the market on July 1, 1874. During its development, the typewriter evolved from a crude curiosity into a practical device, the basic form of which became the industry standard. The machine incorporated elements which became fundamental to typewriter design, including a cylindrical platen and a four-rowed QWERTY keyboard. Several design deficiencies remained, however. The Sholes and Glidden could print only upper-case letters—an issue remedied in its successor, the Remington No. 2—and was a "blind writer", meaning the typist could not see what was being written as it
Typewriter in the Sky of someone else's imagination." Writing in "A Short History of Fantasy" (2009), authors Farah Mendlesohn and Edward James characterized the book as "The best of Hubbard's stories" and noted that it "is better seen as a rationalized fantasy". In a 2009 article on Hubbard's writings, "Booklist" classed "Typewriter in the Sky" and "Fear" as among classics within science fiction and fantasy. Alexei Panshin and Cory Panshin wrote in "The World Beyond the Hill: Science Fiction and the Quest for Transcendence" (1989), ""Typewriter in the Sky" can be understood as an old-fashioned alien exploration story, with a new basis of transfer