"Mental chemistry is the science which treats of the changes which material conditions undergo through the operations of the mind, verified by exact observation and correct thinking. As the transformations which are brought about in applied chemistry are the result of the orderly combination of materials, it follows that mental chemistry brings about results in a like manner."
"Mental chemistry is the science which treats of the changes which material conditions undergo through the operations of the mind, verified by exact observation and correct thinking. As the transformations which are brought about in applied chemistry are the result of the orderly combination of materials, it follows that mental chemistry brings about results in a like manner."