■Preface
Towards the 150th Anniversary of the Establishment of the Physical Society of Japan
Okamoto Takuji......117

■Interdisciplinary
Recent Developments of Geant4, a Toolkit for Simulation of the Passage of Particles through Matter
Hisaya Kurashige and Koichi Murakami......120

■Overview Articles
Ultra- and Deep-Strong Coupling Regimes of Cavity QED
Tomohiro Shitara and Kazuki Koshino......125

■Researches
Phonon Dispersion of Organic Semiconductors
Yusuke Wakabayashi, Ikutaro Hamada, and Satoshi Tsutsui......135
Work Relation for Determining the Mixing Free Energy in Small Scale Mixtures
Akira Yoshida and Naoko Nakagawa......140
Theory of Spin Hall（Nernst）Effect without Spin Current
Atsuo Shitade......146

■La Toccata
Our Voice and Our Ears: NPO for the Advancement of Science from Japan
Motoaki Bamba......152
Research and Education in India Now as Seen from Manipal
Kazuyuki Furuuchi......154

■JPSJ Selected Papers in the Latest Issue......156

■PTEP Selected Papers in the Latest Issue......158

■Reports on JPS Meeting......160

■Book Reviews......166