FROM A NOTE-BOOK OF 1837. 



led to comprehend true affinities. My theory would give zest 

 to recent & Fossil Comparative Anatomy : it would lead to 

 study of instincts, heredity, & mind heredity, whole meta- 

 physics, it would lead to closest examination of hybridity & 

 generation, causes of change in order to know what we have 

 come from & to what we tend, to what circumstances favour 

 crossing & what prevents it, this and direct examination of 

 direct passages of structure in species, might lead to laws of 

 change, which would then be main object of study, to guide 

 our speculations. 



