NOTES 
12 5 
And so the tests and personal letters continue to 
encourage the instructor and open up many a vista of 
unexpected applications or suggested truths. 
The variety of questions show the great need of the 
study even among those favored with high scholarship 
as well as among those trained in the thorough but 
slower school of experience. 
When many facts of everyday life, of common ob¬ 
servation, are seen to be caused by the growth of omni¬ 
present, invisible plants put into the world as benef¬ 
icent agents, all life becomes more interesting. Such 
study should lead away from foolish or ungrounded 
fear. It should lead to thought and wise action, that 
the danger spots be prevented or removed; that each 
do all in his power to protect not only himself but his 
neighbor. 
How strongly it emphasizes the truth from the great 
poet-philosopher, John Milton: 
“ Not to know at large 
' Of things remote from use, 
But to know that which 
Before us lies in daily life 
Is tne prime wisdom.” 
