Considers that the erection of hair and feathers in fear may serve a real defensive purpose, which he details.
Showing 21–31 of 31 items
Considers that the erection of hair and feathers in fear may serve a real defensive purpose, which he details.
Personal affairs – the move to Marlborough Place.
Describes the pointed right ear of his son.
Mentions publication of Expression.
Asks whether children born blind ever frown, shed tears, or contract orbicular muscles.
Congratulates FCD on his anniversary [as Professor at Utrecht].
Ecstatic praise of CD and Expression, which has transformed physiognomy.
Sends his papers on sadness ["Dell’azione del dolore", Gaz. Med. Ital. Lombarda (1866, 1867)]. Sends some observations on physiognomy.
Comments on Expression.
Introduces himself as an acquaintance of E. A. Darwin. Offers miscellaneous observations on human expression.
Thanks CD for copy of Expression.
Agrees to observe expression in children born blind.
Sends story of a dog’s suicide.
Has read CD’s latest book and will make observations for CD.
Reports on a monkey that throws things when "angry".
Explains how natives count to more than four; CD incorrect on this point.
Sends photographs of blacks.
Cicadas out in force.
If decapod does not pass through zoea stage, is this acceleration? If hypothetical adult retained zoea characters, would this be retardation? Believes obliteration of growth stages frequently due to natural selection. Most interesting points in AH’s letter deal with senile characters. CD attributes them to laws of growth not selection. Explains degraded characters as result of readaptation to simpler conditions. Believes no innate tendency to progressive development exists.
Hopes AH visits F. Hilgendorf’s famous deposit [at Steinheim]. A. Weismann [Einfluss der Isolierung (1872)] makes good use of Hilgendorf’s observations.