230 PROCEEDINGS COTTESWOLD CLUB 1906 
(1) primary instincts due to natural selection ; (2) second- 
ary instincts due to lapsed intelligence ; and (3) instincts 
of blended origin. Professor Weismann has advocated the 
view that all true instincts are due to natural selection. 
With this view the lecturer concurs. But he has 
endeavoured to show that, though intelligent modifica- 
tions are not directly inherited, they may indirectly 
foster the congenital variations on which the origin of 
instincts depends. The lecturer proposed to deal with 
this hypothesis at greater length in a future address. 
