620 VITALITY AND EFFICIENCY WITH RESTRICTED DIET. 



Squad B had two dates with the eye movement measurements, 

 January 14 and 20, under conditions of reduced diet. These results 

 are averaged at the bottom of table 181. The average for L is 98.8 a*, 

 which can be compared with the 96.3 a of the normal. The average 

 for R is 90.9 c as against 89.3 cr. The indications are, therefore, that 

 the eye movements were slightly slower during the period of the 

 reduced diet. 



Table 180 shows the data of eye-movement speed for Squad A. At 

 their first session, October 28, 3 weeks after the beginning of the 

 reduced diet, the average speed for left movement was 96.6 o- and vari- 

 ability 7.3 per cent. The average speed for right movement was 93.1 a 

 with variability 6.6 per cent. Individual subjects ranged, left, from 

 84 to 112 0- for Qui and Gar, and 

 for right from 76 to 114 cr for 

 Kon and Spe} In the variabil- 

 ity for left movements, the men 

 ranged from 3.3 to 10.4 for Vea 

 and Tom. For right move- 

 ments they ranged from 4.7 to 

 11.0, Can and Gvl and Mon. 



The individuals of Squad A 

 have averages for the dates 

 October 28, November 25, De- 

 cember 9, January 13, and 

 January 27.^ The averages for 

 all of these dates are shown at 

 the bottom of table 180. The 

 total average for the 10 men is 

 for left movements, 101.6 (r, for 

 right, 93.3 a. The variability 

 is 9.1 and 8.3 per cent, respect- 

 ively, for left and right. Thus 

 all of the averages for eye move- 

 ments shown by members of 

 Squad A fall within the range found for the normal series of 1917. 



The influence of the low-diet condition upon this muscle coordina- 

 tion process may be judged better from the data presented in diagram- 

 matic form in figures 117 and 118. In figure 117 the solid lines repre- 

 sent, as in other curves, the data of Squad A. The two curves in each 

 case are designated L and R, for left and right. The speed of the 

 movements left shows a definite and regular lengthening with the 



^The record of 114 a for Spe is associated with an error in the procedure in that the left eye 



was not covered. 

 *The measurement was also used on November 11, but owing to a difficulty with the apparatus 



the records were nearly all failures. 



Fig. 117. — Speed of the eye movements. 



L and R designate movements to the left and to 

 the right. Solid lines represent Squad A, 

 broken lines Squad B. 



