Thanks LA for information on sexual differences in the coloration of Amazonian fish. CD was anxious to know how the sexes differed because they are unusual in that the male has the largest share in looking after ova and young.
Down Bromley | Kent [Freshwater]
Aug 19. 1868
I thank you cordially for your very kind letter.
I certainly thought that you had formed so low an opinion
of my scientific work that it might have appeared indelicate
in me to have asked for information from you, but it never
occurred to me that my letter w
Your information on the Amazonian fishes has interested me
extremely, & tells me exactly what I wanted to know. I was
aware, through notes given me by D
Your letter has not only interested me much, but has greatly gratified me in other respects, & I return you my sincere thanks for your kindness.
Pray believe me my dear Sir | yours very faithfully | Charles Darwin
- f1 6323.f1See letter from Louis Agassiz, 22 July 1868.
- f2 6323.f2See letter from Louis Agassiz, 22 July 1868 and n. 1.
- f3 6323.f3The annual meeting of the British Association for the Advancement of Science took place in Southampton in 1846; CD was vice-president of the botany and zoology section, and Agassiz delivered a paper on the fishes of the London clay (Report of the 16th meeting of the British Association for the Advancement of Science held at Southampton in 1846, p. xv; Transactions of the sections, p. 52).
- f4 6323.f4See letter from Albert Günther, 13 May 1868.