i8o 



CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D S er. 



[p] = 53^ ; iog\pw~\ =5-9589 



p. e. = i 0.00016 



A 



[p] =44 l A ; log[pvv] = 6.2716 



0.00336 



p. e. = ± 0.00028 



