Response letter to HA Laitinen from Harris concerning a second addition to Chemical Analysis, dated May 28, 1971.
Letter from IM Kolthoff on the occasion of Harris' retirement with comments on his work as a scholar, dated June 25, 1980.
Full lecture notes on Walter Harris' talk "Risk Assessment" given to Sigma Xi at Corbett Hall on September 24 1997. See accession no. 2012-27-235.2 for corresponding lecture slides and accession no. 2012-27-235.1 for a poster that advertised the public talk.
Slides for the public lecture "Low Dose Risk Assessment" by Harris and sponsored by the University of Alberta chapter Society of the Sigma XI. The lecture was held on September 24, 1997. See accession no. 2012-27-179.1 for corresponding lecture notes and accession no. 2012-27-235.1 for a poster that advertised the public talk.