Editorial
pp. 51–53
A physical hypothesis for learning
L. Keszthelyi pp. 54–55Abstract
Contaminated aircraft cabin air: aspects of causation and acceptable risk
J.J. Ramsden pp. 56–68Abstract
Comments and Matters Arising
Some comments on the recently proposed periodic table featuring elements ordered by their subshells
E. Scerri pp. 69–70
Forum
Brand "fascism" and academic stalking
D. Healy pp. 71–84