This article provides an interview transcript between David Kahn and Mario Montessori (1898-1982), son of Dr. Maria Montessori. Mario Montessori dedicated his life to the preservation, dissemination and application of Montessori's works. Herein Kahn asks Montessori about his time living in the hills of Kodaikanal, India. Montessori touches upon the elementary class he taught there, the influence of Cosmic Education on his lessons, and his exploration of the sciences with the children. [This article was reprinted from "The NAMTA Quarterly" 5,1 (1979, Fall): 56-59. For "Chapter I," see EJ1078126.]