" silas taught me how; and berries and milk would be so nice, " she said, emptying the contents of her pail into her hat, and boldly beginning her new task, while rob stood by and repeated, at her command, the poem from mother goose: " cushy cow, bonny, let down your milk, let down your milk to me, and i will give you a gown of silk, a gown of silk and a silver tee. "