312 
PHYSIOLOGY: H. S. REED 
Proc. N. A. 
"best" straight line is drawn from which the values of the slope and intercept 
are read off. If the lines make much of an angle with each other it usually 
means that the value of h has been poorly chosen. The choice of a value for 
ti is facilitated if one ascertains all the values of log ^log — > a ^d from 
them determines by inspection the values of (t— h) which will bring approx- 
imately equivalent values of log ^log ^ as nearly as possible the same 
distance from the ordinate. For this purpose, the highest and lowest values 
fig. l 
Graph of values for lemon shoots. Points represent values of log (t— 9.5} 
when t <h; crosses represent same when t > h. 
