ERRATA S Gupta, H Huang and E Yeager, Stu&es of the adsorption of tetrasulfonated substrate, Electrochun Acta 36,2165 (1991) The first heading m the Expenmental
phthalocyanmes
on graphite
section should have read
Preparatron condztron 1 (adsorptron under open-arcurt condttrons) The publishers apologze for any mconvemence caused
K Llan, S J Thorpe and D W I(lrk, The electrocatalytlc actlvlty of amorphous and crystalline NI-Co alloys on the oxygen evolution reaction, Electrochun Acta 37, 169 (1992) The layout of the SEM photos m Fig 8 IS incorrect The pubhshers apoloaze