Untitled (gorilla holding hand of trainer)

Joseph Janney Steinmetz

Monkeys: Mother and Two Children

Mori Sosen 森狙仙

Untitled (baby gorilla under table)

Jack Gould

Rev. Martin Luther King (reproduction from Nine Drawings Portfolio)

Ben Shahn

Untitled (gorilla and trainer with arms on each other's shoulders)

Joseph Janney Steinmetz

Untitled (mother chimp with baby chimp)

Jack Gould

Untitled (clothed gorilla with trainer)

Joseph Janney Steinmetz

Untitled (mother chimp with baby chimp)

Jack Gould

At the Foot of the Corss

Alphonse Legros

What’s New And Happening At The Guggenheim

Guerrilla Girls

Untitled (man holding baby chimp)

Jack Gould

Two Monkeys Eating Oysters

Coryn Boel David Teniers II

[Organ grinder's monkey]

Lyonel Feininger

Lion

Wenceslaus Hollar Albrecht Dürer

Bust of a Man with Feathers in his Cap

Giuseppe Longhi

Portrait of an Old Man

Rembrandt Harmensz. van Rijn

Head and Shoulders of an Old Man

Oscar Fehrer

Untitled (gorilla on swing/close-up of gorilla)

Joseph Janney Steinmetz

Untitled (seated gorilla and trainer)

Joseph Janney Steinmetz

Bebe and I, Brookline

Nicholas Nixon

At the Milliner's

Pierre-Auguste Renoir

Squatting Monkey

Antonio Tempesta

Henry James (1811-1882)

Frank Duveneck Henry James

The Assumption of the Virgin

Jacopo Tintoretto

Head of an Apostle

Benedetto Luti

X-radiograph(s) of "Young Man"

Peter Paul Rubens

The Denunciation of Adam and Eve

George Frederic Watts M. Grieve Co.

Michelangelo Buonarotti

Unidentified Artist Jacopino del Conte

Ushabti

The Creation of Eve

George Frederic Watts M. Grieve Co.

Photo by Kip Ruhl

Larry Stark

"Slim"

David Gordon

Untitled (woman in fur stole, animal head draped down her arm)

Curtis Studio

Untitled (puppies on checkered floor)

Jack Gould

Head of a Man

Ferdinand Landerer Martin Johann Schmidt (called Kremser-Schmidt)

A Lion Devouring a Horse

George Stubbs

[Masks]

Lyonel Feininger

X-radiograph(s) of "Madonna and Child"

Nicolò Rondinelli

Landscape with Pond

William Langson Lathrop

X-radiograph(s) of "St. Yves"

Jacques Jordaens

X-radiograph(s) of "Mrs. Benjamin Carpenter"

John Durand

Fountain Head, Philadelphia

George Krause

Three Monkeys

Unknown Artist Mori Sosen 森狙仙

Ernestine Anderson

Brian Lanker

X-radiograph(s) of "Jan de Montfort"

Anthony van Dyck

Reclining Figure

Mario Sironi

X-radiograph(s) of "Portrait of a Woman"

Jan Anthonisz. van Ravesteyn

X-radiograph(s) of "Portrait of Dr. Ames"

Willem van der Vliet

Untitled (mother chimp holding baby chimp)

Jack Gould

Untitled (mother chimp holding baby chimp)

Jack Gould

Untitled

Christian Boltanski

[Watercolor by Lyonel Feininger, 1923]

Lyonel Feininger

X-radiograph(s) of "Self-Portrait"

Jean-Auguste-Dominique Ingres

X-radiograph(s) of "Self-Portrait"

Mather Brown

Untitled (treating an injured foot, Vietnam)

Gordon W. Gahan

Old Man in Affliction

Jan Joris van Vliet Rembrandt Harmensz. van Rijn

The Raising of Lazarus

Jacob Louÿs Jan Lievens

Naomi with Yuri, Boston

Nan Goldin

Untitled (nude)

Lucien Clergue

X-radiograph(s) of "Man with Clenched Fist"

Giorgione (Giorgio da Castelfranco) Titian (Tiziano Vecellio)

Michel-François Le Tellier, Marquis de Louvois

Antoine Masson

Young Girl with Butterflies

Matthijs Maris

Pepper

Frank Noelker

Rachel

Frank Noelker