opacity:
Yerkes shield
opacity:
Yerkes entrance
opacity:
snowy detail
opacity:
GS composing
opacity:
stars in borders
opacity:
sideways
opacity:
faces
opacity:
reflection
opacity:
moon phases
opacity:
nostrils
opacity:
deep stars
opacity:
checking settings
opacity:
arch
opacity:
dome side
opacity:
narrow windows
opacity:
graceful arc
opacity:
ground-floor door
opacity:
Yerkes door work
opacity:
Yerkes entrance arch in snow
opacity:
side 'goyle
opacity:
goddess in relief
opacity:
Yerkes Observatory, University of Chicago 1895