Open Library
Science
The universe explained, imperfectly.
International Review of Cytology
Kwang W. Jeon
Prolegomena
Immanuel Kant
Geography
Harm J. de Blij
Ideen zu einer reinen Phänomenologie und phänomenologischen Philosophie
Edmund Husserl
The Dragons of Eden
Carl Sagan
Das Finanzkapital
Rudolf Hilferding
Environmental science
G. Tyler Miller
Far away and long ago
W. H. Hudson
Handbook of Flowering
Abraham H. Halevy
The Evolution of Man
Ernst Haeckel
Progress in Optics
Emil Wolf
Horizons
Michael A. Seeds
Handbook of learning and cognitive processes
William K. Estes
Handbook of nature-study for teachers and parents
Anna Botsford Comstock
Federal research
United States. General Accounting Office
Solid State Physics
Frederick Seitz
Nutrition
Frances Sizer Webb
An Examination of Sir William Hamilton's Philosophy
John Stuart Mill
Microbiology
John Wade Foster
Herrn Eugen Dührings Umwälzung der Wissenschaft
Friedrich Engels