Jack's Health

Longways for as many as will
    A1   8   First couple cross and go below, second couple move up.
    A2   8   First couple turn partner 2 hands (Now improper).
    A2   8   Back to back with your contrary.
    A2   8   Fall back taking hands with contrary; set to partner.
    B1   8   Come forward with contrary, turn single away.
         8   Two changes of right-and-left (hands).
    B2   8   Complete right-and-left
         8   All turn partner two hands (C1 1.5 turns, C2 1 turn)

Source of dance notes: http://macnash.telfer.uottawa.ca/playford/index.php/INS:Jacks_Health