Pleochroism of monoclinic and sperm whale crystals. Index at front, listing topics 1-11, and pages numbered accordingly. Extensive notes, calculations, graphs and diagrams, ideas and critiques in pencil and ink with corrections and comments in red ink, March 1953 - May 1957. Topic 11 in the index is "Paramagnetic resonance results" and the material incorporates correspondence, results and collaborative research with D.J.E. Ingram with whom Kendrew published a note on…