40 
Leitch . — Some Experiments on the Influence of 
the second the maximum . It is suggested that the term optimum should 
properly be applied to the third. The reason for the confusion which 
o "Z /?. <o 8/0 'S, /A- /6 '8 ZO - 2-2 Z/S -2 6 Sg 3o 3S. 
Text-fig. io. 
i, for growth curve, represents growth of o-i on Text-fig. 6. Temperature in ° C. 
i, for Krogh’s curve, represents 39-34 on his scale. 
1, for Kuijper’s curve, represents 3-03 ,, ,, 
Growth. 
Krogh. 
Kuijper. 
at which a process shows its maximum intensity, and that the idea of 
optimum, originally founded on long-period experiments, has been associated 
with apparent maximum intensity. More exact analysis has shown the 
