■Preface
Message from Chairperson of Research Environment Committee
Takekazu Ishida......513

■Interdisciplinary
Climate Change and Atmospheric Blocking
Noboru Nakamura......516

■Researches
Generalization of Riemannian Penrose Inequality
Keisuke Izumi......525

Cluster Magnetic Octupole Probed by X-Ray Spectroscopy
Motoi Kimata and Norimasa Sasabe......530

Model-Free Determination of Complex Surface Structure by Reflection High-Speed Electron Diffraction
Hiroaki Aoyama and Tadashi Abukawa......536

First-Principles Calculation of Finite-Temperature Materials Properties Opened Up by Anharmonic Phonon Theory
Terumasa Tadano......542

■The Path to History......548

■La Toccata......552

■JPSJ Selected Papers in the Latest Issue......554

■PTEP Selected Papers in the Latest Issue......557

■Book Reviews......560