410 E. Frankland on the Source of Muscular Power. 
of these double journeys occupy one minute. e men were 
daily engaged with—shot-drill 8 hours, ordinary drill 1} hours, 
oakum picking 34 hours, 
The total average daily external work was estimated by 
Haughton at 96,316 meterkilograms per man. 
e following is a condensed summary of the results of these 
experiments :— 
Military vegetarian prisoners at shot-driil,—( Haughton.) 
Average external work per man per day, wy eae - 96,316 mks. 
Average nitrogen evolved per man perday, - - -  - 121 gratms, 
Weight of dry muscle corresponding to average nitrogen evolved ee “ 
ee a eS 
Actual ene ucible. by the consumption of 77-9 grams of 
dry ee the toa : ad aes Peg aan ER 143,950 mks, 
Average actual energy devehsped daily in the 
y of each man, viz., External wor 
96,316 2== - - - - 192,682 mks. 
Internal work, eo Ee ee eee 160,012 “ 
are rar 359,644 mks, 
_ Owing chiefly to the vegetable diet of these prisoners, the re- 
It is more conclusive than that obtained upon the treadwheel, 
the amount of work actually performed being considerably more 
than twice as great as that which could possibly be obtained 
through the muscle metamorphosis occurring in the bodies of 
the prisoners, | 
Playfair’s determinations.—In these determinations the num- 
ber 109,496 meterkilograms was obtained 1 a es ee 
vas oD 
