FROM A NEW ENGLAND HILLSIDE. 237 



XLVI. 



I SEE that Lord Salisbury, in his address 

 as president before the British Association 

 for the Advancement of Science, takes occa 

 sion to speak at length of the things which 

 we do not know, a very wholesome re 

 minder, and much needed by many people. 

 I fear that the rapid discovery of details in 

 regard to methods of growth and develop 

 ment, during late years, has produced an 

 undue feeling of extensive and comprehen 

 sive and commanding knowledge on the 

 part of the unthinking, not at all allied to a 

 cautious modesty. These things are enor 

 mously interesting and important, and it is a 

 source of great regret to me to find so many 

 people whose eyes have not been opened to 

 them, and whose time occasionally hangs 

 heavy on their hands time which, under 

 other circumstances, would be filled to re 

 pletion with the joy of living and knowing. 



But, after all, the startling, the appalling 

 thing is, not the extent of what we know, 

 but the extent of that which we do not 



