. Popular science monthly. FiQ. 27. Fig. 28. I am rather disposed to think that the aromatic character of theleaves protects them by rendering it less easy for animals to eat still drier regions, such as the Cape ©f Good Hope, an unusuallylarge proportion of species are bulbous. These, moreover, do not be-long to any single group, but are scattered among a large number of very different families : the bulbouscondition can not, therefore, be ex-plained by inheritance, but musthave reference to the surroundingcircumstances. Moreover, in a largenumber of species the leaves tend tobecome s


. Popular science monthly. FiQ. 27. Fig. 28. I am rather disposed to think that the aromatic character of theleaves protects them by rendering it less easy for animals to eat still drier regions, such as the Cape ©f Good Hope, an unusuallylarge proportion of species are bulbous. These, moreover, do not be-long to any single group, but are scattered among a large number of very different families : the bulbouscondition can not, therefore, be ex-plained by inheritance, but musthave reference to the surroundingcircumstances. Moreover, in a largenumber of species the leaves tend tobecome succulent and fleshy. Now,in organisms of any given form thesurface increases as the square, themass as the cube, of the , a spherical form, which isso common in small animals andplants, and which in them offers asuflUcient area of surface in propor-tion to the mass, becomes quite unsuitable in larger creatures, andwe find that both animals and plants have orifices leading fromthe outside to the interior, a


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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872