| Show natures economy dinv inv inventions Indent i mentions ions during the next two or three centuries will in the lie opinion of many experts probably tie ile in the III 11 of imitations of the wonderful economy and the Fil simple triple direct meth of nature take the electric eel as nn an example its electric organ Is IP in no sense a storage hatt battery viry hul but n contrivance by which electric energy Is liberated at the moment when it Is 1 required at rest the file organ shotts allows SO go small nn an electromotive forre force thrill n good galvanometer Is required to tie de hect M it but a sudden nervous Impi ilip from the eels spinal cord raises n potential of many volts with very ery little littie he heat at and so small an expenditure of matter as to defy cry the most expert chemist to weigh tt it fireflies glow worms and many deep sea fishes pro duce light without heat nt at a cost which would make tile the price of a wax was caudle candle an extravagant outlay |