Letter (Astounding, September 1938): Crows Can Visualize Up to Four—and That's Man's Limit of Visualization. But Man Can Count—Whereby He Excels the Crow.

Overview:

  • Title: Letter (Astounding, September 1938): Crows Can Visualize Up to Four—and That's Man's Limit of Visualization. But Man Can Count—Whereby He Excels the Crow.
  • Author: Jim Blish
  • Year: 1938
  • Type: Essays

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