Signedat top of the photograph: THE INTERNATIONAL METEOROLOGICAL COMMITTEE/ (AND ITS GUESTS)/ UPSALA, 1894
Inscribedat the bottom of the photograph: Snellen, (Fineman), Davis, Hildebransson, Billwiller, (Sprung), (Rotch)/ (Riggenbach), (Teisserene de Bort), Paulsen, Henites, (Brunoff)/ Mascart, Scott, Tacchini, Hann, v. Betzold, Mohn