Section 810. Conservation day

1.  The last Friday in April each year is
  hereby made and declared to be known as Conservation day,  and  observed
  in  accordance  with the provisions of this chapter, except that for the
  year nineteen hundred  seventy-eight,  Conservation  day  shall  be  May
  third.
    2.  It  shall be the duty of the authorities of every public school in
  this state to assemble the pupils in their charge on  that  day  in  the
  school  building,  or elsewhere, as they may deem proper, and to provide
  for and conduct (1) such  exercises  as  shall  tend  to  encourage  the
  planting,  protection  and  preservation  of  trees  and  shrubs, and an
  acquaintance with the best methods to  be  adopted  to  accomplish  such
  results,  and  (2)  such  lectures,  pictures or tours, as shall tend to
  increase the interest and knowledge of such pupils in the fish and  wild
  life, soil and water of the state.
    3.  The  commissioner  of  education may prescribe from time to time a
  course  of  exercises  and  instruction  in  the  subjects  hereinbefore
  mentioned,  which  shall  be  adopted  and observed by the public school
  authorities on Conservation day. Upon receipt of copies of  such  course
  sufficient  in number to supply all the schools under their supervision,
  the school authorities aforesaid shall  promptly  provide  each  of  the
  schools under their charge with a copy, and cause it to be observed.