Bust-length portrait with body turned to the right, in front of a gray-tan background. The subject has black hair and hazel eyes. He is wearing a black coat and stock and a white waistcoat and collar. Unsigned and undated.

Obverse: bas-relief profile portrait of Poincaré, leaning arms on table, reading book. "HENRI POINCARE/MDCCCLIV / MDCCCCXII," at top; Greek inscription at bottom. Reverse: "A / HENRI POINCARÉ / MATHÉMATICIEN / PHILOSOPHE / PHYSICIEN / ASTRONOME / 1854-1912 / SOUSCRIPTION / INTERNATIONALE."

Half-length figure, turned right. Wearing black coat, waistcoat, bow tie, white collar. Dull gray background. Signed "G W Pettit 1897" on lower right corner.

Obverse: bas-relief of classical figure and torch; "COLLEGE OF PHYSICIANS & SURGEONS COLUMBIA UNIVERSITY" around perimeter, "Abram Belskie" under knee of figure. Reverse: bas-relief of building facade; "TWO HUNDREDTH ANNIVERSARY 1767 1967" around perimeter, "Hans T. Clarke" under facade. Presented along with the papers of Hans T. Clarke (APS Library).

Three-quarter-length seated figure, body turned right with three-quarter view of face. Left hand placed on arm of chair; right hand holds edge of page from a book on table next to the sitter. Bald head, white hair at back; beard and moustache. Black suit, waistcoat and cravat, white collar. Also on table are three glass containers with quill pens. Inscribed at top: "Lazar Raditz / 1917".

Portrait with head and shoulders visible to above waist. Body slightly turned right, head facing forward. Figure wears red academic robe, brown coat and waistcoat, blue cravat. Signed "Lazar Raditz" in lower right corner. After ca. 1894 photograph.

Three-quarter length-view of seated figure, facing left, holding book in right hand, wearing academic robes and cord of Doctor of Medicine at the University of Pennsylvania.

Half-length seated figure, with right arm leaning against a suggested table. The subject wears a coat, waistcoat, collared shirt, and cravat. Brown background. Signed: "T. Henry Smith/ after/ John Neagle" in lower left corner.

Bust-length portrait with body turned slightly to the right. Wrapped around the subject's shoulders is a black cloak with a fur collar, which he holds in his right hand. The subject has graying, dark brown hair, and gray eyes. Visible underneath the fur cloak is a black coat, and a white shirt and collar. A large red curtain is in the background, behind the figure. Unsigned and undated; originally signed "TS 1840" on reverse of canvas.

Three-quarter length portrait of a seated figure with body turned to the left, in front of an unfinished brown and tan background. The figure holds his head in his left hand and his right hand holds the pages of an open book. He has white, receding hair, brown eyes, and a rosy complexion. He wears a black coat with a white collar and bow, open at the throat. A pair of spectacles rests on his forehead. The figure is seated in a wooden armchair and in the lower left corner, against the chair, are three books and a portfolio, resting on a table. Unsigned and undated.

Bust-length portrait with body turned slightly to the left, in front of dark tan background. Subject has black hair, brown eyes and a rosy complexion. He is wearing a black coat and a white waistcoat and collar with the neckcloth tied in a bow. Unsigned and undated.

Three-quarter length portrait. Figure seated, both hands holding large book in lap. Body turned right, facing forward. Figure wears coat and waistcoat, shirt, cravat, and red academic robe. Inscribed "Copy after S. G. Putnam" in upper right corner.

Oval, 3/4 portrait bust of Peter Collinson in center with "PETER COLLINSON. F.R.S. SAS." outside bottom perimeter. Signed "Trotter. S." at bottom right, under portrait. At bottom in script: "Hinc, quce Natura negabat Visibus humanis Oculis ca Pectoris hausit. Cumque Animo, it vigili perspescerat omnia cura; In medium discenda dabat." In gilt, wooden frame behind glass.

Oval, frontal portrait bust of John Fothergill in center with "JOHN FOTHERGILL. MD.F.R.S." outside bottom perimeter. Signed "Rd. Livesay pincr" and "F. Bartolozzi sculp" along bottom perimeter. At bottom in script: "Cui suas artes, sua dona laetus Et herbam et Venae salientis ictum Scire concessit, celerem et medendi Delius usum." "From a Bust in the Possession of Dr. Lettsom" at bottom. In gilt, wooden frame under glass.

Glass color transparency of William Welch seated outdoors in a chair. Presented with the papers of Simon Flexner (APS Library).

Portrait with head and shoulders visible; body turned three-quarters to the left, head facing center. The sitter wears a dark suit, waistcoast, and bow tie, a white shirt with gold buttons, and a gold watch chain across waistcoat. Inscribed: "H. Ulke" on front, lower right corner.

Half-length seated figure, body turned left, head leaning on left hand, left elbow on table edge. Wearing black coat, blue tie, white collared shirt, gold cuff in left arm cuff. Chair back is upholstered red, table is covered in reddish-brown fabric. Signed "Henry Ulke 1879" lower right corner. After original 1875 portrait by Ulke (National Portrait Gallery, Smithsonian Institution).

Obverse: Overlapping profiles of man and woman with allegorical figure to the right, holding a branch and gesturing to a building at top. Reverse: crest with "HELSINGIENSIS VNIVERSITAS" around perimeter and "T.H. DOBZHANSKY 1967" on outer rim.

Half-length seated figure, shown in profile against a tan and brown background. The sitter wears a black suit and waistcoat, a white shirt, a maroon tie run through a ring, and a gold watch chain. Signed: "H. Ulke" in lower right corner.

Portrait of Charles Darwin above signature and inscription: "From Etching by Leopold Joseph Flameng / of Painting by Hon. Joseph Collier."