The major organs and vessels

Leonardo da Vinci; 10 15/16 in.x 7 3/4 in.; pen and ink with brown and greenish wash, over black chalk on paper

A deluge

Leonardo da Vinci; 6 27/64 in.x 8 17/64 in.; black chalk on paper

Proposed ground and flight check-out of variable L/D system installed in variable stability T-33

"T-33. TM3."

Flight evaluation of various phugoid dynamics and 1/Th values for the landing-approach task.

"This is the second in a series of two reports dealing with longitudinal handling qualities in the landing approach." (see also TL/711/L3/C43+)

Flight text of an autopilot installation as a lateral gust alleviator in a PT-26 airplane.

"Aeronautical Research Laboratory. Contract No. AF 33(038)-10480, Task 70171, Project 1366."

Study of a reclining male nude: Adam, from the Creation of Adam

Michelangelo Buonarrati; 7 19/32 in.x 10 13/64 in.; red chalk over stylus underdrawing on paper

Ignudo, after Michelangelo

Peter Paul Rubens, after Michelangelo; 1 ft. 3 9/32 in.x 10 15/16 in.; red chalk drawing, retouched in red chalk with some red wash, heightened with white on paper

Portrait of Isabella Brandt

Peter Paul Rubens; 1 ft. 3 in.x 11 37/64 in.; black and red chalk, with some brown wash, heightened with white, on light grey-brown

The Angel stopping Abraham from Sacrificing Isaac

Rembrandt van Rijn; 7 43/64 in.x 5 25/32 in.; red chalk over black chalk, with grey wash, on paper prepared with light brown wash

Édouard Manet at the Races

Edgar Degas; 1 ft. 41/64 in.x 9 11/16 in.; graphite and black chalk on beige wove paper on paper

St Paul preaching at Athens

Gerbrand van den Eeckhout; 7 3/32 in.x 8 3/16 in.; pen and brown ink with brown and reddish-brown wash and some white heightening; touched with red chalk

The Angel preventing Abraham from sacrificing his son, Isaac

Rembrandt van Rijn; 7 43/64 in.x 5 25/32 in.; red chalk over black chalk, with grey wash, on paper prepared with light brown wash

The Dance Lesson

Edgar Degas; 2 ft. 1 25/64 in.x 1 ft. 10 1/8 in.; pastel and black chalk on three pieces of wove paper, joined together

Prose idylls, new and old.

'A charm of birds'.--Chalk-stream studies.--The fens.--My winter-garden.--From ocean to sea.--North Devon.

Discourses biological and geological;

On verso of t.-p.: Authorized edition.