1884.] Ingesta and Egesta of Mr. E. P. Weston. 55 



nits, that the diet of a certain man consisting of 120 grins, of 

 albuminoids, 90 of fat, and 330 of carbohydrates was equal to 2,922,011 

 heat-units ; subtracting the carbon and hydrogen excreted in the 

 faeces and urine, the heat-units of which were equivalent to 457,882, 

 there were left 2,464,129 heat-units as representing the carbon and 

 hydrogen which may be considered to have undergone complete 

 combustion. A similar calculation gives the mean daily numbers of 

 Weston's heat-units as 4,690,183, or just about twice the amount that 

 Vierordt calculated for a man doing ordinary work on the standard 

 diet given above. 



Assuming the usual formula to be correct, that a person walking 

 on a level surface raises ^V f h* 8 "weight through the distance walked, 

 then the work done by Weston daily in the Victoria Hall was equal 

 to 2,462,071 kilogram-metres (793 foot-tons). It has usually been 

 held that 1,552.795 kilogram-metres (500 foot-tons) daily was exces- 

 sive labour, most ordinary work being little more than one-third of 

 this. 



Although for a limited time Weston himself, as well as others, has 

 undergone more exertion, his feat is, I believe, the greatest recorded 

 labour, if its continuity be considered, that any human being has ever 

 undertaken without injury. 



The Society adjourned over Ascension Day to Thursday, May 29th. 



