4iO TiMEMRl. 



For this system we could use one locomotive of eight horse-power, 

 which we had for our thrashing machine. The amount required for 

 this is, say /6, 1 00 



Interest on /6,iOO at 17 o/o ... ... ... .../ 1,037 



190 days, coal and oil ... ... ... ... 800 



100 days, five men ... ... ... ... ... 750 



50 days, I man with i horse to bring water ... 125 



y 2,712 



100 days at 25 H.A. per day = 250,/2,7i2 r^.,/io-85 per H.A. 



In these calculations the implements of Fowler were taken into con- 

 sideration for the first two systems, £is he is the greatest manufacturer 

 and his apparatus for Steam Ploughing is well-known and generally con- 

 sidered the best. For the " Round-about System" Fisher is preferred 

 as his apparatus for this kind of Steam Ploughing is considered the 

 best. The English calculation of 5 0/0 interest on the purchase money, 

 5 0/0 for repairs and renewing (wear and teir) and 5 0/0 for deprecia- 

 tion is taken. For the apparatus of Fisner 2 0/0 more is calculated for 

 repairs and renewing, on account of the greater wear and tear of 

 some of its parts such as the hempen cable and th2 metal channels in 

 which it runs, this making not less than a thousand revolutions a 

 minute. Further, it is accepted that for about a hundred days every 

 year the Steam Plough should be used on the Polder to give a finish to 

 the work of cultivation. 



By Fisher's Steam Plough, not a hundred but fifty days are reckoned 

 for the supply of water, as the Locomotive stops longer in one place 

 and can be supplied from a well at one end of the field. 



The number of hectares in the Polder to be ploughed every day is 

 calculated at somewhat more than those usually given in England, 

 because it is usual there to plough with one team of horses one acre, 

 4,000 yards, daily while we can do at least 6,000 yards in the same 

 time. So, in England it is calculated that with the '* Double System" 

 between nine and ten acres can be ploughed, or about four heftares, 

 and therefore we calculate for five. This will serve to explain the 

 above calculations. 



When we compare steam against horse ploughing, we allow that 8 

 teams or 16 horses should plough as much daily as an apparatus with 

 two Locomotives on the '' Double System." According to experience 



