Guild lecture.

no.2; no.3 1939; no.4 1939; no.5 19uu; no.8 1940; no.10 194u; no.11 1941; 1944; no.1 1944; no.19; no.27; no.32 194u; no.33 1944; 1945; no.34 19uu; no.38 1945; 1946; no.39 19uu; no.42 1946; 1947-1948; no.44; no.47 19uu; no.51 1948; no.52; no.53; no.54; no.55; no.57; no.58; no.59; no.61; no.62; no.63; no.64; no.65; no.66; no.67; no.68; no.69; no.70 19uu; no.71; no.72; no.73; no.74; no.75; no.76; no.78; no.79; no.81-87,91-98; no.155-161; no.183-203,209,211-219,221-238,241,246-249 1976-1990; no.250; no.251; no.252; no.253; no.255; no.256; no.257; no.258; no.260; no.261; no.262; no.263; no.264; no.265; no.266; no.267; no.268-279 200u; no.280