Open Library
Science
The universe explained, imperfectly.

Prolegomena
Immanuel Kant

Ideen zu einer reinen Phänomenologie und phänomenologischen Philosophie
Edmund Husserl

The Dragons of Eden
Carl Sagan

Environmental science
G. Tyler Miller

Geography
Harm J. de Blij

Far away and long ago
W. H. Hudson

Handbook of Flowering
Abraham H. Halevy

Handbook of learning and cognitive processes
William K. Estes

The Evolution of Man
Ernst Haeckel

Progress in Optics
Emil Wolf

Nutrition
Frances Sizer Webb

Solid State Physics
Frederick Seitz
Federal research
United States. General Accounting Office

Das Finanzkapital
Rudolf Hilferding

Horizons
Michael A. Seeds

An Examination of Sir William Hamilton's Philosophy
John Stuart Mill

Handbook of nature-study for teachers and parents
Anna Botsford Comstock

Microbiology
John Wade Foster

Herrn Eugen Dührings Umwälzung der Wissenschaft
Friedrich Engels

The Intelligent Man's Guide to Science
Isaac Asimov