Bøker i Source Books in the History of the Sciences-serien

Gathered together here are the fundamental texts of the great classical period in modern logic. A complete translation of Gottlob Frege's Begriffsschrift-which opened a great epoch in the history of logic by fully presenting propositional calculus and quantification theory-begins the volume, which concludes with papers by Herbrand and by Goedel.

Here, find source literature for the most important contributions to the remarkable recent expansion of geological knowledge. Excerpted are 65 articles on topics including the constitution of Earth¿s interior, earthquakes, radioactive timekeepers, submarine features and deep-sea cores, entrapment of petroleum, and crystal structure.