Fisher — The Effect of Diet on Endurance. 29 



The following table expresses the percentage of improvement in 

 the records of Table XI. 



TABLE XIII. 

 IMPROVEMENT IN PHYSICAL ENDURANCE IN PERCENTAGES. 



In the preceding table most of the figures are succeeded by a " + ", 

 which signifies that the true improvement was greater than the 

 figures indicate. Thus, the first entry in Table XIII, " 33 + ", means 

 that B.'s improvement between January and March in test (I) 

 (rising on toes) was more than 33^. Similai'ly, "686- "for Lq. in 

 same test means that improvement was less than 686,'^. Again, 

 "215+ "for M.'s same test signifies that his improvement in this 

 test may have been greater or less than 215^. Finally, when any 

 figure is not followed by a sign, as for instance, B.'s (3) (leg raising), 

 the meaning is that the figure given is, humanly speaking, correct. 

 This accuracy applies only to those tests in which the muscles were 

 worked till they were physicalh'" unable to repeat the movement. 

 The reasons for the various suflixes may be found by studying the 

 foot-notes of Table XI.' 



^ For instance the " + " after 33 for B.'s (1) is explained by the fact (as indi- 

 cated in the foot-note to Table XI) that after his March test he was not as fatigued 

 as after his January test, although he had improved upon his January record 

 by 33^. The only cases in which the explanation of the suffixes will not be 

 found from the foot-notes to Table XI are the following: E.'s (1), 36 + , in 

 which case the " — " is inserted owing to the fact that E. had come to the March 

 test after the refreshment of a nap ; and M.'s (1), 1081 + , in which case the " — " 

 is inserted owing to the fact that this high figure is inconsistent with the other 

 results of the test, it being thought that M. may have been mistaken in his 



