Physics: crystal physics. Folder A.90. Notes on the literature, index on front page, paginated g0-g51. Folder A.91. Lectures on "Crystal Physics: selected topics" by W.H. Taylor, Lent and Easter 1946, index on front pages, paginated 0g-101g. Folder A.92. Lectures on "Fourier methods" by H.D. Megaw, Lent 1948, index on front page, paginated 102g-147g. Folder A.93. Lectures on "Some properties of the reciprocal lattice", by W. Cochran, Lent 1950,…