His beard is darker than his hair, an exception to CD’s rule in Descent [2: 319]. Encloses sample of his hair, beard, and whiskers.
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His beard is darker than his hair, an exception to CD’s rule in Descent [2: 319]. Encloses sample of his hair, beard, and whiskers.
Points out errata in Descent.
WBT’s beard exceptional in that it is darker than his hair [see Descent 2: 319].
Upset to learn he has misrepresented CD’s doctrine on Pangenesis [in Proc. R. Soc. Lond. 19 (1871): 393–410]. Hopes that CD’s letter to Nature [3 (1871): 502–3; Collected papers 2: 165–7] will clarify the doctrine and attract attention to it.
Sends his paper on locusts ["Die geographische Verbreitung der Wanderheuschrecke", Petermann’s Geogr. Mittheil. (1871)]. The effect of the growth of forest land on their increase; meteorological and climatic effects.
Also observations made on increase in mice as a result of increase of locusts, on whose eggs they fed, and of increase of weasels that fed on mice.