It should be considered whether the history of this drink should not be integrated by reporting this recipe present in the "Old Waldorf-Astoria Bar Book", 1935, p. 53:
"HEARN'S
Dash of Manhattan Bitters
One-third Whiskey
One-third Italian Vermouth
One-third Absinthe"
"HEARN'S
Dash of Manhattan Bitters
One-third Whiskey
One-third Italian Vermouth
One-third Absinthe"