Figure 2

Letter of appreciation, dated 1 May 1990, written by Mary Mandels to Mike Himmel for organising a special symposium on 'Enzymes in Biomass Conversion' at the 1990 American Chemical Society meeting in Boston, MA, USA. The letter is signed by both Mary and Elwyn Reese. Courtesy of Michael E Himmel, National Renewable Energy Laboratory, Golden CO, USA.