No. 3.

NUMERICAL CHARADE.

I am composed of 18 letters.
My 10, 2, 18, 17 is indisputable.
My 4, 3, 14, 8, 15 is a color.
My 1, 8, 7 is a boy's name.
My 13, 5, 9, 8 is a flower.
My 16, 12, 6 is arid.
My 6, 5, 11 is a pronoun.
My whole is a noted event of the Revolutionary war.
W. R. S.