The Molecular Biology lectures started out and then eventually died out as the year progressed. Feynman found the material challenging to get his head around before the lecture and, therefore, very time consuming. He apparently found a CalTech colleague, Seymour Benzer, who changed from physics to biophysics as a person who stimulated Feynman’s interest in this topic.
By consensus the lecture series ended early. Feynman was deep into his own parton theory which was his version of quark theory. He and Gell-Mann were collegial competitors in those days.
In preparing these notes for release I decided to include what notes I had of those lectures only to give evidence of Feynman’s interest to explore all the dimensions of science and nature. For those involved in the field these notes will not provide much informational value particularly with all the advancements on research and understanding of molecular biology. The value, I believe, for the reader is how Feynman thought through the subject matter and mentally organized it so he could lecture on it. That might aid teachers in this field to sharpen up their own presentation material. At the end of the volume are my un-transcribed real-time notes that I never got to but I decided to include for those who are into this field.