ANIMAL MECHANICS. 



475 



Fig. 1 1 f Mr. J. Gilbert Saughton {Raising both Arms loaded, 

 from vertical to horizontal position, at varying rates). 



At A •■= 27.5. 



The maximum work possible, and the time of lift corre- 

 sponding to it, are found as before, viz, 1 



n = — = 2 1. 8 



£ = _ = i.«[87'i sees. 



The value of w found from the last of these equations is 

 10 = o.< 



Mr. Nipher's experiments on raising the loaded arm from 

 the vertical to the horizontal position, at varying rates, gave 

 him the following results : — 



No. 1. — Mr. Nipher (Raising Weight ■with Right Arm, at 

 varying rates). 



w = 7 kilos, h - 0.74 metre. 





f. 



n (observed), 



n (calculated) 



Difference, 





1. 164 



sees. 



15.8 



22 . 2 



-6.4 



2. 



1.50 



>> 



22.8 



22.8 



O 



3. 



2.0 





18.5 



2I.7 



- 3-* 



4. 



3-o 



;, 



17.3 



18.2 



- 0.9 



5. 



4.0 





15.3 



15-5 



— 0.2 



6. 



4-5 





*5° 



13.8 



'4-4,2 



7- 



5-0 





14. 3 



12.6 



+ *,7 



8. 



6.0 





12.8 



9-4 



+ 3-4 



