VOLUME 676 OCTOBER 2018 ISSN 0039-6028

A JOURNAL DEVOTED TO THE

PHYSICS AND CHEMISTRY OF INTERFACES

M. MAVRIKAKIS EDITOR-IN-CHIEF

EDITORS

H. BLUHM

K. FUKUI

H.-P. STEINRÜCK

SPECIAL ISSUE

DEDICATED TO THE 75 BIRTHDAY

OF PETER R NORTON

GUEST EDITOR

H.-P. STEINRÜCK