66 BIOLOGICAL SOCIETY OF WASHINGTON. 



And yet, there is so much of order and harmony apparent in all 

 her ways, so much of the genial sunshine of knowledge gained 

 to the naturalist who studies them that, with the optimism which 

 is inseparable from a sound mind in a healthy body, he has an en 

 joyment of his occupations such, I believe, as other men rarely 

 know. 





