but seldom at night
*
back cover (detail; 90º ccw)
The Psychological Bulletin VI. (1909)
University of Michigan copy, digitized February 19, 2009
another (University of Toronto) copy, at archive.org
all in all, the surface has hardly been scratched p 78
the surface and obvious reflections pp 419-420
epigram (Experimentelle Didaktik 1905) p 207
tags:
night; rounds; scratches; skies; sky; surfaces; Experimentelle Didaktik (1905)