aka: Die Minerva, ein Luftschif welches durch Professor Robertson zu einer Entdekung bestimmt ist man sehe die Erklärung nach ---- pub domain image via BnF - gallica.bnf.fr/ark:/12148/btv1b69422646/f1.item Quoting JF Ptak - longstreet.typepad.com/thesciencebookstore/2013/03/sugges... - "..the great balloon La Minerve, the prankish gesture of the Belgian optico-magician, physics experimenter/exhibitionist and general experimenter (and probable crumbun) “Dr. Roberston”, who was actually Étienne-Gaspard Robert.." (nb. image spliced together from screencaps and modestly cleaned in the background)

aka: Die Minerva, ein Luftschif welches durch Professor Robertson zu einer Entdekung bestimmt ist man sehe die Erklärung nach ---- pub domain image via BnF - gallica.bnf.fr/ark:/12148/btv1b69422646/f1.item Quoting JF Ptak - longstreet.typepad.com/thesciencebookstore/2013/03/sugges... - "..the great balloon La Minerve, the prankish gesture of the Belgian optico-magician, physics experimenter/exhibitionist and general experimenter (and probable crumbun) “Dr. Roberston”, who was actually Étienne-Gaspard Robert.." (nb. image spliced together from screencaps and modestly cleaned in the background)

aka: Die Minerva, ein Luftschif welches durch Professor Robertson zu einer Entdekung bestimmt ist man sehe die Erklärung nach ---- pub domain image via BnF - gallica.bnf.fr/ark:/12148/btv1b69422646/f1.item Quoting JF Ptak - longstreet.typepad.com/thesciencebookstore/2013/03/sugges... - "..the great balloon La Minerve, the prankish gesture of the Belgian optico-magician, physics experimenter/exhibitionist and general experimenter (and probable crumbun) “Dr. Roberston”, who was actually Étienne-Gaspard Robert.." (nb. image spliced together from screencaps and modestly cleaned in the background)