208 Quantitative Analysis of Plant Growth 



Table III.— Unit Leaf Rate for " Badischer Frith" maize (1877). 



II. Correlation of Unit Leaf Rate with Environmental Factors. 



(1) Sampling errors. 



Before attempting to correlate the fluctuations in the values of the 

 Unit Leaf Rate with environmental factors it will be as well to consider 

 to what extent they may be due to sampling errors. 



