'318 Manual. 



19. A member of any of the departments may become 

 a member of cither of the others, on being duly elected 

 and paying the initiation fees and annual contributions 

 required by the by-laws of such department. 



20. No member of one department shall be transferred 

 to another, without the consent of the department which 

 he leaves, and that of the Institute. 



IV. Classes in the Several Departments. 



21. The President of each of the Departments shall, at 

 the annual meeting or the first meeting thereafter, an- 

 nounce the names of members of three classes within his 

 department, of one of which he shall be chairman ; each 

 class to consist of three or more members. The duty of 

 these classes or committees shall be, to report annually 

 to the Institute such notes or selected items as may present 

 a brief record of matters of interest in science and litera- 

 ture. They shall report in such order as the Recording 

 Secretary shall arrange at the commencement of the year. 



These classes shall be : 



In the First Department {Physical Science and the 

 Arts) : 



1. On Physics and Astronomy. 



2. On Physiology and Chemistry. 



3. On Arts. 



In the Second Department [Natural History): 



1. On Geology. 



2. On Botany. 



3. On Zoology. 



In the Third Department (History and General Litera- 

 ture) : 



1. On Modern History, especially historical records 

 possessing local interest. 



