...and that diversity of colour in the sexes is due, primarily, to the transmission of colour-variations either to one sex only or to both sexes, the difference...argued that the primary cause of sexual diversity of colour was the need of protection, repressing in the female those bright colours which are normally...

...colour-variations either to one sei -о or to both sexes, the difference der. a-: ing on some unknown law, and ts being due to natural selection. I have long held this...argued that the primary cause of sexual diversity of colour was the need of protection, repressing in the feniüthose bright colours which are nomudlj produced...

...colour-variations either to one sex only or to both sexes, the difference depend ing on some unknown law, and nnt being due to natural selection. I have long held this...erroneous, and have argued that the primary cause ni sexual diversity of colour was the neeJ of protection, repressing in the female those bright colours...

...and that diversity of colour in the sexes is due, primarily, to the transmission of colour-variations either to one sex only or to both sexes ; the difference...argued that the primary cause of sexual diversity of colour was the need of protection, repressing in the female those bright colours which are normally...

...that diversity of colours in the sexes is due, primarily, to the transmission of colour variations either to one sex only or to both sexes, the difference...unknown law, and not being due to natural selection. From this conclusion Mr. Wallace differs, and argues with great force and ingenuity in favour of the...

...least, first of all, to the transmission of color variations either to one sex only or to both seхes, the difference depending on some unknown law and not being due to simply natural selection. Mr. Wallace, who has h ad long experience in the tropics, regards this view...

...primarily, to the transmission of colour-variations either to one sex only or to both sexes; the differenee depending on some unknown law, and not being due to natural selection. 1 have long held this portion of Mr. Darwin's theory to be erroneous ; and have argued that the primary...

...birds of to-day. Wallace takes a directly opposite view, as expressed in the following passage: * " I have long held this portion of Mr. Darwin's theory...repressing in the female those bright colors which were normally produced in both sexes by general laws; and I have attempted to explain many of the more...

...and that diversity of colour in the sexes is due, primarily, to the transmission of colour-variations either to one sex only or to both sexes, the difference...argued that the primary cause of sexual diversity of colour was the need of protection, repressing in 1 For fuller information on this subject the reader...

...and that diversity of colour in the sexes is due, primarily, to the transmission of colour-variations either to one sex only or to both sexes, the difference...Darwin's theory to be erroneous, and have argued that the primaryjsause of_sexual diversity of colour was the need of protection, repressing in 1 For fuller...