United States or Fiji ? Vote for the TOP Country of the Week !
To put it more precisely, the lung of the quadrupeds retains this hereditary growth-process of the fishes; for the hydrostatic floating bladder of the latter is the air-filled organ from which the air-breathing organ of the former has been evolved. There is an interesting cenogenetic phenomenon in the formation of the heart of the higher Vertebrates that deserves special notice.
All these aspects have suggested to my mind at times, do suggest to this day, the unorganised, abundant substance of some tumorous growth-process, a process which indeed bursts all the outlines of the affected carcass and protrudes such masses as ignoble comfortable Croydon, as tragic impoverished West Ham.
Plates II and III show two series of leaves which are so arranged as to represent definite stages in the growth-process of the plant concerned. In each sequence shown the leaves have been taken from a single plant, in which each leaf-form was repeated, perhaps several times, before it passed over into the next stage.
Word Of The Day