Depth Perception Apparatus
name: label: used at
content: Carnegie-Mellon University
label: maker
content: C. H. Stoelting Company
notes: label: Description
content: In tests with the Howard-Dolman Depth Perception Apparatus, the subject is asked to line up one rod with another. Dr. Harvey J. Howard (1880-1956), an ophthalmologist, described the basic test in 1919. Dolman introduced a modification soon thereafter. This example was manufactured by the C. H. Stoelting Co. in Chicago.
label: Description
content: Ref: H. J. Howard, “A Test for the Judgement of Distance,” American Journal of Ophthalmology 2 (1919): 656-675.
label: Description
content: “Dr. Harvey Howard, Eye Specialist, Dies; Devised Aviation Depth-Perception Test,” New York Times (Nov. 7, 1956), p. 31.
label: Location
content: Currently not on view
place: label: place made
content: United States: Illinois, Chicago
setName: label: See more items in
content: Medicine and Science: Medicine
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MG.311913.07
label: catalog number
content: 311913.07
label: accession number
content: 311913
objectType: label: Object Name
content: Apparatus, Testing, Psychological
label: Object Name
content: depth perception apparatus
label: Other Terms
content: Apparatus, Testing, Psychological; Diagnostic Medicine
physicalDescription: label: Physical Description
content: metal (overall material)
label: Physical Description
content: wood (overall material)
label: Physical Description
content: string (overall material)
label: Measurements
content: overall: 5.9 cm x 30.6 cm x 64.7 cm; 2 5/16 in x 12 1/16 in x 25 1/2 in