How did Henry Moore use pebbles, shells, rocks, and bones in developing his sculptures?

Henry Moore drew significant inspiration from natural objects, including pebbles, rocks, shells, and bones, to develop his unique sculptural language. During the 1930s, he began collecting these items and studying them to uncover what he termed "nature’s principles of form and rhythm".1

By analyzing these organic shapes, Moore sought to move away from pure geometric forms, instead applying natural structural logic to his work. This study led him to incorporate concavities and holes pierced directly through his sculptures, a technique that allowed him to explore the relationship between internal and external space.1

In his later career, Moore continued to utilize these organic connections, particularly through symbolic correspondences between the human body and elements of the landscape—such as cliffs, caves, and hillsides—as well as human and animal bones. These natural forms remained central to his artistic vision, helping him bridge the gap between abstract, organic shapes and the human figure.21