In the Forum article ‘Getting to grips with left-handed yoghurt’ by
David Hall (7 September), an editorial error altered the setting of d and
l (in the d and l isomers of lactic acid) from small capitals to lower case,
thereby confusing molecular configuration with the rotation of polarised
light.
In ‘Casualties of Vietnam’s recovery’ (14 September), it was stated
that 200 000 hectares of forest are razed each year for export. In fact,
the majority of the wood taken from the forests is for domestic use.
