Show Natures Nature's Economy I Inventions hiring during the next two or three centuries will III In the opinion of many experts probably be In the direction di di- direction of Imitations of the time w wonderful economy econom and and- the time simple direct methods meth of nature Take the electric eel as an example Its electric organ oran Is In no sense a storage battery batter but a contrivance by which t electric energy is liberated at the moment when It Is required At rest I r he the organ shows so small an electromotive force that a good gooel galvanometer r Is required d to detect detect detect de de- It hut but a n sudden nervous Impulse from the time eels eel's spinal cord raises a n potential of num ninny many volts colts with very ery little lit tie the heat anti and so small an expenditure of matter as to defy the most expert chemist to weigh it Fireflies glowworms glowworms glow glow- worms and many deep sea fishes produce pro duce light wi without hout heat nt at a n cost which would make the price of a n wax candle an nn extravagant extra outlay |