J. Robert Oppenheimer '26 will conclude the William James Lectures for 1957 this afternoon at 4:30 p.m. in Sanders Theatre. The atomic physicist has been discussing some of the more relevant examples from atomic physics and quantum theory in an approach to "A Hope of Order," which will be the title of his last lecture and has been the topic of the entire series.

The director of the Princeton Institute for Advanced Study spent the middle four lectures bringing out the uncertainty principle which lies behind modern physics.

He laid strong emphasis on the idea that examining an object from one point of attack may yield the maximum possible information about that object but not all the information, since another point of view might have given different information, but would have excluded the first approach.