12 books in series

Cambridge Mathematical Library

Cambridge Mathematical Library is a 12-book series with 12 released primary works first released in 1908 with contributions by G.H. Hardy, Alfred North Whitehead, Bertrand Russell, Lewis Fry Richardson, Edmund Taylor Whittaker, G.K. Batchelor, Yitzhak Katznelson, David Ruelle, Luis A. Santaló, Avner Ash, David Mumford, Michael Rapoport, and Yung-sheng Tai.

Inequalities
A course of pure mathematics
Integral Geometry and Geometric Probability
Thermodynamic formalism : the mathematical structures of equilibrium statistical mechanics
An Introduction to Fluid Dynamics
Principia Mathematica to *56
Smooth Compactifications of Locally Symmetric Varieties
Principia Mathematica
An Introduction to Harmonic Analysis
A Course of Pure Mathematics
A Course of Modern Analysis
Weather Prediction by Numerical Process