Eyewitness account of 1910 appearance of Halley's comet in Croatia (then part of Austro-Hungarian Empire). Author mentions that the comet's appearance portended eventual war in that country and points to the later assassination of Archduke Ferdinand and the outbreak of WWI as validation.
Eyewitness account of 1910 appearance of Halley's comet in Cape Town, South Africa. Author includes detailed data on the altitude and azimuth of the comet and encloses a map and sketch of the comet over Table Bay.
Eyewitness account of 1910 appearance of Halley's comet in Tuxedo (New York?). Author responds on questionnaire created for the Halley's comet project.