From Introduction: "That the percentages of extraction of petroleum from the ground may and undoubtedly will be greatly increased in the future by underground mining methods where natural conditions will permit seems logical. The limitations imposed by depth, temperature, and flow of water under high pressure through the sands will be discussed later."

From Introduction: "The analyses in this bulletin offer a means for judging the relative values of the foreign crude oils compared with familiar crude oils of the United States that have been analyzed by the Bureau of Mines method."

From Introduction: "The major purpose of this bulletin, as indicated in the preface by Dr. John W. Finch, Director of the Bureau of Mines, is to give a critical review of the coal-mining methods used in the principal producing countries of Europe, to describe the reasons underlying the adoption of these methods, and to contrast them with coal-mining methods employed in the United States."

This is a study of the causes of the rise of the Third Reich, and its attitude toward the Treaty of Versailles.

Pair of ladies' gloves. The "hands" are of pale brown with white fabric, possibly a silk/cotton blend. Seamed on inside, they have 3 darts on back of each hand done with dark brown stitching. At wrist on each side is a v-shaped extension which joins to the "cuff", which is of light brown cotton with yellow tones. The scalloped edges of the "cuff" and semi-circular sections on the back of each are piped in dark brown fabric. The "cuffs" are styled as a wrap dress, with an overlap at back of wrist. The overlap has a single cylindrical button of black plastic designed to appear carved with three notches in the side revealing pale green/yellow below and at ends. Manufacturer's tag inside gloves: "Kayser, 52 * Reg / Made in Germany / 6"; Stamped in lining by tag: "Kayser 52". The gloves are accompanied by the original paper care tag: "WASH / GLOVES / ON HANDS / Use almost cool / water and a pure / mild soap. We re- / commend PALM- / OLIVE BEADS. Do / not rub. After wash- / ing take gloves off / rinse thoroughly in / cold water. Pull / lengthwise wrap / and …

Report studying the "underlying principles for the computation and design of airplane engine superchargers" (p. 1). With the forms of superchargers and underlying principles of computation, delivery heads per stage of 7,000 to 8,500 meters (air column) at an effective efficiency, based on the adiabatic process, of 0.7 may be attained, the space and weight requirements being kept within reasonable limits.

Photograph of German women in uniform standing in a line.

Photograph of Adolf Hitler and Rudolf Hess visiting Hitler's house in Munich while it was under construction.

Photograph of Adolf Hitler, who holds a bouquet of flowers in one hand, touching the chin of a young boy in the Hitler Youth. Other children from the Hitler Youth, as well as German officers, stand behind Hitler.

Photograph of a German man saluting Adolf Hitler. Other men and women stand around them and watch. Buildings are visible in the background.

Photograph of Adolf Hitler touching the chin of a young girl. A man stands behind her with his hands on her shoulders, and a soldier is visible behind him.

Photograph of Adolf Hitler giving a speech to a large crowd outdoors. Many microphones of various shapes are placed in front of him, and there are glasses, a bottle, and a plate on the table to his left.

Photograph of Adolf Hitler speaking to a man and a woman in folk costume.

Photograph of Adolf Hitler signing autographs for a group of young boys in the Hitler Youth.

Photograph of Adolf Hitler seated at a table with the Polish ambassador, Colonel Józef Beck. Tea cups and saucers are on the table in front of them.

Photograph of Adolf Hitler, wearing a tuxedo, speaking to André François-Poncet who is in elaborate dress and holds a plumed hat under one arm.

Photograph of Adolf Hitler standing with workers and military officers in Siemensstadt.

Photograph of Adolf Hitler speaking to a German couple in a street, and patting the woman's hands. Other people, including soldiers, are visible in the background.

Photograph of Adolf Hitler speaking to a German officer. A large house is visible in the background, and two men stand watching Hitler and the officer.

Photograph of a crowd saluting Adolf Hitler as he walks past them, holding his hat in one hand. There is a tree to the right, and a wreath above the doorway of the Schillerhaus Weimar to the left.

Photograph of Adolf Hitler and five other unidentified man looking at several very old books laid out on a table in front of them.

Photograph of Adolf Hitler reading in a train car. Nazi sympathizers are seated behind him.

Photograph of Adolf Hitler standing with a group of German men, all of whom look off to the right.

Photograph of Adolf Hitler standing in front of a group of workers.