70 
THE APPLE. 
be assisted, or in many cases absolutely secured—perfect constancy of 
character is of less moment, and can hardly be looked for in a fruit so 
given to change as the apple. 
Dr. Hogg bases his classification on a fourfold basis. The first is 
taken from the insertion of the stamens in the tube, the secondary from 
the tube itself, the tertiary from the cells of the core, and the sub¬ 
ordinate from the eyes, form of the fruit, &c. 
Of course there would be difficulties at first in using this or any other 
system of classification. It would also take considerable practice to 
become expert in the use of the signs employed to denote the different 
characters. But these once mastered, there can hardly be a doubt 
that Dr. Hogg’s new classification of apples would prove of the greatest 
service in determining the different varieties, and would greatly facilitate 
a more intelligent knowledge of distinct sorts. 
