"On the Anthropometric Laboratory at the late International Health Exhibition," by Francis Galton (29)

2190. 28 Francis Galton. --- On the Anthropometric Laboratory, &c. females, and 34 per cent. of the males hear the next shrillest test-note, as against 28 per cent. of the females. [tabular material] & & Percentage of cases in which the under-mentioned number of vibrations were perceived as a musical note. & & & Number of vibrations per second. & & Ages. & 20,000 & 30,000 & 40,000 & 50,000 & Number of cases. Males.. { & 23-26 & 99 & 96 & 34 & 18 & 206 & 40-50 & 100 & 70 & 13 & 4 & 317 Females { & 23-26 & 100 & 94 & 28 & 11 & 176 & 40-50 & 100 & 63 & 8 & 1 & 284 [end tabular material] [centered score] [open square bracket][italics]Reprinted from the Journal of the Anthropological Institute, February, 1885.[closing square bracket] [centered score] [hairline rule] Harrison and Sons, Printers in Ordinary to Her Majesty, St. Martin's Lane.[end italics] [end]