Asks for information on coloration and proportions of sexes in butterflies and moths for his work on sexual selection.
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Asks for information on coloration and proportions of sexes in butterflies and moths for his work on sexual selection.
Thanks EW for information [on expression] about Australians.
Discusses factors possibly influencing the sex of caterpillars. Is gathering information on sex ratios in insects and would welcome any cases in which males seem to outnumber females.
Thanks HTS for his valuable information. Hopes to arrive at probable answer to question of proportion of males to females in the progeny of butterflies bred in domestication.
On courtship of butterflies, CD believes something more than chance is involved in determining which male is successful.
Asks WED to observe a suppressed yawn.
Asks whether scratching a tickling point makes tears come to his eyes.