To accomplish this automatic feeding each set of grate bars is constructed in hinged sections, and forms a wide endless iron belt which revolves and carries the coal within the cavity of the furnace. The coal crusher, bucket hoist, movable grate bars, ash collectors and sifters, pumps, blowers, lights and all other utilities of the plant, as well as the great travelling crane which can hoist and carry many tons' weight--any part of the enormous dynamos--from place to place, are operated by electricity which is generated in the dynamos. Automatic gauges that measure and indicate, and switch-boards that regulate the energy created and stored in the dynamos play important parts in the economy and working of the plant and are analogous to appetite and taste in man. ANALOGY ILLUSTRATED The full analogy may be best illustrated by arranging the similar functions of the two energy-creating machines opposite each other in parallel columns. ELECTRIC AND MIND POWER-PLANTS COMPARED ELECTRIC POWER-PLANT MIND POWER-PLANT Fuel. Food. * * * * * Selection of fuel as to Selection of food for steam-making and economic nutritive value; normal qualities. appetite serving as an exact guide and gauge. * * * * * Crushing coal so as to Masticating food so render combustion as that the juices of the easy and complete as mouth can act on the possible. substance with greatest freedom; taste being evidence of the working of the process. * * * * * Automatic conveyal of Automatic reception of the prepared fuel, first to properly masticated and the bins and then on to thoroughly insalivated the furnace as required. food into Nature's Food Filter and emptying into the furnace of the stomach by Involuntary, or Compulsory Swallowing. * * * * * Combustion in the furnace. Digestion in the stomach and intestines. * * * * * Generation of steam in Generation of material the boiler tubes and storage for vital energy and storage in the boilers. in the body. * * * * * Steam. Blood in circulation. * * * * * Steam Gauge. Pulse. * * * * * Engine. Heart. * * * * *