1 “...This book offers a history of the instrumentation used to materialize the early thought experiments...”

2 Table of Contents: “...1. Introduction -- 2. The Fifth Congress of Russian Physicists -- 3. On Comrade Timiryazev’s...”

3 Table of Contents: “... Theory of Material Bodies in Forced Motion -- Chapter 2: Heaviness, Lightness, Sinking and Floating...”

4 Table of Contents: “...1 A Remarkable Person in a Very Special Epoch -- 1 H. A. Kramers: Why a Biography? -- 2...”

5 “... century, but not confirmed and subsequently lost. Volume I of this two-volume work covers objects observed...”

6 “...This two-volume catalog is the first in-depth investigation of comets that were reported since...”