Q: Could you please tell me the value of this book (Mary, Mary, Quite Contrary)?

A: This book is part of the eight volume Bo-Peep Series. The books of this series are large (8.5 x 6.75) and came with dust jackets. (Shown with the book). All eight books were published in 1905.
Generally without a dust jacket they do not sell for more than a few dollars each.