I have in my plant-yard a branch of geranium, broken off from an old plant over two months ago. It has laid on the ground in nearly the same spot since, in a shady place. The end where it is broken off is as dry and hard as a piece of wood. It has grown and bloomed continually ever since. I often pick it up and show it to customers. If it does not receive life through foliage, where does it?

[The scientific point involved in these practical illustrations, and which has brought out the many papers we have recently received, is this : If a plant can absorb water or vapor through its tissues, why may it not absorb gases - nitrogen, for instance - and in this sense be "carnivorous?" - Ed. G. M].