Philosophy of Science owes a considerable debt of gratitude to its referees—the Associate Editors, the members of the Editorial Board, and the many other individuals who help to review submissions. In acknowledgement of their essential service, we list here the names of those individuals who have refereed papers during the year 2009 (apart from the Associate Editors and members of the Editorial Board, listed on the inside cover).

Fred Adams

Ken Aizawa

Kathleen Akins

Anna Alexandrova

Ron Amundson

Hanne Andersen

Aristidis Arageorgis

Andre Ariew

Brad Armendt

Frank Arntzenius

David Atkinson

Bengt Autzen

Jonathan Bain

David Baker

Sorin Bangu

Matthew Barker

John Beatty

Mark Bedau

Helen Beebee

Brett Bevers

Tomas Bigaj

James Bogen

Jessica Bolker

Frederic Bouchard

Luc Bovens

Richard Bradley

Ingo Brigandt

Jeffrey Bub

Otavio Bueno

Julia Bursten

Jeremy Butterfield

Martin Carrier

Adam Caulton

Hasok Chang

Mark Collier

Mikael Cozic

Carl Craver

Jason Dana

David Danks

Henk De Regt

Michael Devitt

Michael Dickson

Franz Dietrich

John Doris

Heather E. Douglas

Igor Douven

Armond Duwell

Kenny Easwaran

Adam Elga

Marc Ereshefsky

Brian C. Fay

Branden Fitelson

Steven French

Roman Frigg

Mathias Frisch

Greg Frost-Arnold

Lisa Gannett

Ronald Giere

Carl Gillett

Donald Gillies

Carmen Giunta

Bruce Glymour

Todd Grantham

Hilary Greaves

Paul Griffiths

Alexandre Guay

Matt Haber

Hans Halvorson

Andrew Hamilton

Sven Ove Hansson

Michael Hardimon

Gary Hatfield

James Hawthorne

Jeremy Heis

Robin Hendry

Sam Hillier

C. Hitchcock

Don Hoffman

Cliff Hooker

Paul Hoyningen-Huene

Paul Humphreys

Yoichi Ishida

Michel Janssen

Lina Jansson

Benjamin Jantzen

Doug Jesseph

Kent Johnson

Brian L. Keeley

Catherine Kendig

Harold Kincaid

Patricia Kitcher

Noretta Koertge

Peter Kosso

Elaine Landry

Joseph Laporte

Hannes Leitgeb

Peter Lewis

Chuang Liu

Barry Loewer

Alan Love

William Lycan

Peter Machamer

Edouard Machery

P. D. Magnus

John Manchak

Pete Mandik

Michela Massimi

Mohan Matthen

James Mattingly

Kris McDaniel

Roberta L. Millstein

Margaret C. Morrison

Lenny Moss

Thomas Mueller

Ryan Muldoon

Dominic Murphy

Bence Nanay

Karen Neander

Paul Needham

Alan Nelson

Jill North

Samir Okasha

Wendy Parker

Tom Pashby

Arash Pessian

J. Brian Pitts

Thomas Polger

Stathis Psillos

Steven Quartz

Grant Ramsey

Antonio Rauti

Nicholas Rescher

Bryan W. Roberts

John Roberts

Jan-Willem Romeijn

Michael Root

Adina Roskies

Sherrilyn Roush

Mark Rowlands

Michael Ruse

T. A. Ryckman

Robert Rynasiewicz

Howard Sankey

Gerhard Schurz

Peter Schwartz

Eric Schwitzgebel

Orly Shenker

Bradford Skow

Chris Smeenk

Peter Spirtes

Wolfgang Spohn

Kent Staley

Daniel Steel

Katie Steele

Jacob Stegenga

Michael Strevens

Stephen Summers

Patrick Suppes

James Tabery

Paul Thagard

Martin Thomson-Jones

Christopher Gordon Timpson

Derek Turner

Thomas Uebel

Elizabeth Valentine

Ioannis Votsis

David Wallace

Denis Walsh

Andrew Wayne

Marcel Weber

Michael Weisberg

Michael Wheeler

Dennis Whitcomb

John S. Wilkins

Rob Wilson

Brian Woodcock

John Worrall

Cory Wright

Wayne Wright

Christian Wuthrich

Zanja Yudell

Kevin Zollman