58 THE ANIMAL AS A MACHINE. 



but he is much inferior to the other animals of creation, 

 and particularly to insects. 



C. WORK OF A HORSE AGAINST A KNOWN 

 RESISTANCE. 



Kind of Exertion. 



R 



V 



T 



3600 



R V 



RVT 



I. 



Cantering and trotting, 

 drawing a light railway 



( min. 1 













carriage (thoroughbred) 



•< mean 30J \ 



143 



4 



447^ 



6,444,000 







( max. 50 ) 











2. 



Horse drawing cart or 

 boat, walking (draught- 















120 



3-6 



8 



432 



12,441,600 



3- 



Horse drawing a gin or 

















100 



3-0 



8 



300 



8,640,000 



4- 





66 



6.5 



4* 



429 



6,950,000 



D. PERFORMANCE OF A HORSE IN TRANSPORTING 

 LOADS HORIZONTALLY. 



Kind of Exertion. 



L 



V 



T 

 3600 



L V 



LVT 



5- 



Walking with cart, always loaded 



1,500 



3-6 



lof 



5.400 



194,400,000 



6. 



Trotting ditto 



750 



7.2 



4^ 



5,400 



87,480,000 



7- 



Walking with cart, going loaded, 















returning empty; V — \ mean 

















1,500 



2.0 



10 



3,000 



108,000,000 



8. 





270 



3.6 



10 



972 



34,992,000 



9- 



Ditto, trotting 



180 



7.2 



7 



1,296 



32,659,200 



The average weight of a horse or an ox may be 



taken as thus : 



Light carriage-horse , . • 800 lbs. 



Heavy 1200 



Light draught-horse. . 1000 " 



Heavy " 1600 



Ox 1000 " 



The horse has galloped a mile in i minute 43 sec- 

 onds, or at the rate of 35 miles an hour, and trotted 

 a mile in 2 minutes 4 seconds, or 29 miles an hour. 



