364 THE ADDRESSES, LECTURES, ETC., OF 



in such a way that none of the effect of steam should be lost. The 

 way this is done is very simple. The steam engine works a dynamo 

 machine. This dynamo machine gives the necessary power to 

 light the house in the evening, and for lighting up certain green- 

 houses during the night, in order to supply them with an artificial 

 sun. This artificial sun enables me to grow fruit, such as melons, 

 peaches, strawberries, and the like in the depth of winter. If I 

 were fortunate enough to have water power at my disposal I 

 should require no expenditure of any sort except the maintenance 

 of a few simple machines for producing these effects. But my 

 steam is not lost. After it has gone through the engine I 

 condense it in a heater. Through this heater I supply all the 

 greenhouses and other places to be heated in winter with warmth, 

 so that I do not expend much more fuel since I have started the 

 electric light and the dynamo machine than I did before in simply 

 heating these greenhouses. During the daytime the current 

 produced by the dynamo machine is conducted to another part of 

 the farm, where it is made use of to pump water. Water is 

 pumped 200 feet high to supply house, garden, tables, and the whole 

 establishment. Another branch wire is used to cut wood, to cut 

 chaff, and to do other work on the farm. In this way waste can 

 be prevented to such an extent that is perfectly surprising to 

 those who have never given the matter due consideration. It is 

 very simple indeed when put into practice, and involves no ex- 

 penditure that is not amply repaid by the results. 



I have now spoken about waste of energy, and I wish to say, 

 before concluding, a few words about the waste of material, which, 

 perhaps, is the greatest source of waste amongst us. The waste 

 of fuel I have already alluded to, inasmuch as fuel is the essence of 

 energy. Nearly all the energy we use, nearly all the power we use, 

 is obtained from fuel. We can see that a vast amount of the fuel 

 we heap on our fire goes up the chimneys and produces no other 

 effect than that of poisoning our atmosphere. (Applause.) That 

 is a waste which, if estimated, could only be estimated by many 

 millions of tons. And its importance will be seen more and more 

 when we consider what could be done with that same fuel if, 

 instead of burning it in this happy-go-lucky manner by throwing 

 raw coal on to our fires, we were to reduce the whole of it into its 

 constituents gas and coke. We can burn gas much more 



