MENDELIAN CHARACTERS IN PLANTS AND ANIMALS. 129 
microscopical investigation. That would be a means of smoothing the 
way. The great horticultural societies in Germany have endeavoured 
to give coloured plates, and the German Rose Society have tried to make 
out tables. But they had to give it up, it was too difficult; and no one 
knew what the others meant. 
Dr. Lotsy, of Leiden: It is important to express the different 
colours, but that is not the most important thing. I do not care so 
much whether you express a colour as crimson or magenta. The more 
serious thing is that where you have two investigators they shall not be 
calling the same thing by two names. 
The President: The facts we have been discussing are very inter- 
esting and very important to us, and the question is to what extent 
we are right in regarding dominance and recessiveness as denoting the 
presence and absence, respectively, of a factor in those cases where the 
negative character apparently dominates. That is what is in all our 
minds in this discussion. Here we have the deeper yellow dominated by 
the lighter yellow, and we have to find out what it means. Until the 
problem is settled we shall be in constant difficulties. When we say 
a ‘character, such as albinism, is pure, it is only that it is pure to its 
whiteness. There may be other characteristics, cryptomeres, underneath, 
which we cannot see. We are greatly obliged to Mr. Hurst for bringing 
these Antirrhinums before the Conference. 
