Report of SociEtv's Meetings. 409 



2. The experiments which have been made with the apparatus on the 

 same Polder. 



3. The reply to the questions. 



I. The reason for the application of Steam-Ploughing in the Wilhel- 

 mina Polder was to obtain the means of working the land when the 

 usual number of horses was insufficient to turn up the heavy soil, and 

 when to provide for this deficiency it became necessary to purchase 

 more teams. The question was then put, would it not be preferable 

 and more profitable, to introduce Steam- Ploughing instead of buying 

 sixteen more horses to produce the desired result. To work out this 

 question comparative calculations were made as regards ploughing 

 with horses for the round-about system as well as the direft system, 

 which was divided as follows : — 



a. The "Single System" with one Locomotive, and 



b. The " Double System" with two, were compared. 



First, according to the " Double System." Two Locomotives of 

 twelve horse-power each, with complete six fold ploughing apparatus, 

 a harrow and extras, were purchased from Fowler at a cost of about 

 21,000 guilders. 



Interest on /2 1, 000 at 15 0/0 ... ... ... .../ 3,150 



100 days, coal and oil ... ... ... ... 1,780 



100 days labour, three men ... ... ... ... 450 



100 days „ one man with two horses to bring water.. 400 



/ 5,780 



100 days at 5 H.A. (Heftares) == Soo,/5,78o i.e.,fivs6 per H.A. 



Second, according to the " Single System," one locomotive of twelve 

 horse power, complete with windlass and six-fold ploughing apparatus, a 

 barrow &c., was purchased from Fowler for about /i5,ooo. 



Interest on /i5,ooo at 150/0 ... ... ... .../ 2,250 



100 days, coal and oil ... ... .■• ... 1,280 



100 days, 3 men and 2 boys ... ... ... ... 550 



100 days, I man with I horse to bring water ... ... 250 



/ 4.330 



ICO days at 4 H.A. per day = 400,/4,330 i.e., /io"42 per H.A. 

 Third, according to " Round-about System" of Fisher — 



