The following is the style often used in England for invitations to garden parties, etc. :

Mr. and Mrs. Jones
request the pleasure of
Mr. and Mrs. Robinson's
company at a garden parly on Tuesday, June
ninth, at four 0'clock.
Collation at seven 0 'clock.
Dancing 8 to 11.
to Corson Place.                     R. S. V. P.

For afternoon teas, etc., the visiting-card of the hostess, with simply "Tea at four o'clock," and the date in the left-hand corner, is all that is necessary, or possibly " At home from four until seven."