INFLUENCE OF ENVIRONMENT UPON HUMAN INDUSTRIES. 665 



in unselfish devotion, in zeal that looks for no recompense, in love that 

 springs from intellectual maternity. 



One by one or in groups the guardians of the past are surrendering 

 their trusteeships. To-day it is a great secretary or a genius among 

 discoverers who lays aside his pen ; to-morrow it is a brilliant inventor 

 or master mechanic; the next day it is a cunning hand that carries to 

 the dark chamber its pencil or chisel which it can not will away; anon, 

 a generous patron of science lives no more. 



Now, who of all human beings should have a true and abiding inter- 

 est in the preservation of these honored careers ? Whose hearts should 

 bleed when such men die? Whose hearts should be glad when they 

 are honored, who in their unwritten wills gave and bequeathed to their 

 children and heirs to have and to hold so long as they live and to hand 

 down with accrued interest and betterments to their successors all true 

 knowledge, all skill acquired with infinite pains, all the harvest of 

 human industries that have been raised upon the generous and fertile 

 environment called earth ? 



