ScientificAmerican1916-12-23.jpg Scientific American 1916-12-16ThumbnailsScientific American 1916-12-30Scientific American 1916-12-16ThumbnailsScientific American 1916-12-30Scientific American 1916-12-16ThumbnailsScientific American 1916-12-30Scientific American 1916-12-16ThumbnailsScientific American 1916-12-30Scientific American 1916-12-16ThumbnailsScientific American 1916-12-30

Aerial lookout in an observatory car suspended from a Zeppelin airship.