<P> "Birches" is a poem by American poet Robert Frost (1874 - 1963). It was included in Frost's third collection of poetry Mountain Interval, which was published in 1916 . Consisting of 59 lines, it is one of Robert Frost's most anthologized poems . Along with other poems that deal with rural landscape and wildlife, it shows Frost as a nature poet . </P> <P> Frost's writing of this poem was inspired by another similar poem "Swinging on a Birch - tree" by American poet Lucy Larcom and his own experience of swinging birch trees at his childhood . Frost once said "it was almost sacrilegious climbing a birch tree till it bent, till it gave and swooped to the ground, but that's what boys did in those days". Written in 1913 - 1914, "Birches" first appeared in Atlantic Monthly in the August issue of 1915 and was later collected in Frost's third book Mountain Interval (1916). </P>

How many lines are in the poem birches