BY-LAWS. 



I. A committee of three, to include the Secretary, 

 shall be appointed by the Executive Committee to 

 arrange a programme for each meeting. 



II. The following persons shall be considered 

 professionally engaged in natural history within the 

 meaning of Article ii., Section i : — Only those who 

 regularly devote a considerable portion of their time 

 to the advancement of natural history; first^ those 

 v^^ho have published investigations in pure science 

 of acknowledged merit; second, teachers of natural 

 history, officers of museums of natural history, phy- 

 sicians, and others who have essentially promoted 

 the natural-history sciences by original contributions 

 of any kind. 



III. At the opening of the annual meeting a com- 

 mittee of five shall be appointed to nominate officers 

 for the ensuing year. 



