502  Field  Columbian  Museum — Reports,  Vol.  i. 
upon  the  Monday  following.  At  such  meetings  the  corporate  members  shall 
transact  such  business  as  may  properly  come  before  the  meeting.  Special  meet- 
ings of  the  corporate  members  shall  be  called  at  any  time  by  the  Secretary  upon 
written  request  of  twenty  corporate  members.  In  such  case,  thirty  days'  notice 
by  mail  shall  be  given  to  corporate  members  of  the  time,  place  and  purpose  of 
such  meetings. 
Sec.  2.  Regular  meetings  of  the  Board  of  Trustees  shall  be  held  upon  the 
14th  day  of  October,  except  when  that  day  falls  on  a  Sunday,  and  then  upon  the 
Monday  following,  and  upon  the  last  Monday  of  January,  April  and  July  of  each 
year.  Special  meetings  may  be  called  by  the  President  at  any  time  upon  reason- 
able notice  by  mail,  and  shall  be  called  upon  the  written  request  of  three  Trustees. 
Five  Trustees  shall  constitute  a  quorum. 
ARTICLE  IV. 
AMENDMENTS. 
Section  i.  These  By-Laws  may  be  amended  at  any  regular  meeting  of  the 
Trustees  by  a  two-thirds  vote  of  all  the  members  present,  provided  the  amend- 
ment shall  have  been  proposed  at  the  last  regular  meeting  preceding,  or  shall  be 
recommended  by  the  Executive  Committee. 
