On the "bullae" as constant, regular generic characters in Hymenoptera. Disagrees with Louis Jurine ["Observations sur les ailes des hyménoptères", Mem. Accad. Sci. Torino 24 (1820): 177–214].
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On the "bullae" as constant, regular generic characters in Hymenoptera. Disagrees with Louis Jurine ["Observations sur les ailes des hyménoptères", Mem. Accad. Sci. Torino 24 (1820): 177–214].
CD has followed Lyell’s advice and avoided controversy over Origin but encourages BDW to attack S. H. Scudder and others who argue foolishly or misquote him.
On H. A. Dubois’ attack on "Darwin, Huxley and Lyell"
and H. J. Clark’s Mind in nature [1865].
BDW’s work [on Cynipidae].
On various subjects: Dana’s misquotations,
H. J. Clark’s book Mind in nature [1865],
BDW’s Cynips experiments, galls,
Balbiani’s paper on aphids ["Sur la reproduction et l’embryogénie des pucerons", C. R. Hebd. Acad. Sci. 62 (1866): 1231–4, 1285–9, 1390–4].
Claus and other Germans testing CD’s views of variability in common lower animals.
Balbiani’s puzzling observations on Aphis.