Visual Space Measurements

  title={Visual Space Measurements},
  pages={218 - 219}
  • Published 4 April 1890
  • Art
  • Science
rommuanicationswill be welcomed from any quarter. Abstracts of scientific papers are solicited, and twenty copies of the issue containing such will be inailed the author on request in advance. Rejected manuscripts will be returned to the authors only when the requisite amount of postage accompinies the manuscript. Whatever is intended for insertion must be authentieated by the name and address of the writer; not necessarily for publication, but as a guaranty of good faith. We do not hold…