Reactor Types＆By ALVIN M．WEINBERG

Neutron Thermalization＆By M．S．NELKIN

Deep Penetration of Radiation＆By U．FANO and M．J．BERGER

The Theory of Resonance Absorption＆By L．W．NORDHEIM

Mathematical Problems of Nuclear Reactor Theory＆By EUGENE P．WIGNER

Diffusion Approximation to the Transport Equation＆By J．ERNEST WILKINS，Jr

Positivity and Criticality＆By GARRETT BIRKHOFF

Existence Theorems and Spectral Theory for the Multigroup Diffusion Model＆By G．J．HABETLER and M．A．MARTINO

Transport Theory and Spectral Problems＆By G．MILTON WING

One-Dimensional Multigroup Calculations：Estimation of Group Constants＆By R．EHRLICH

Numerical Methods for Solving Multi-Dimensional Multigroup Diffusion Equations＆By RICHARD S．VARGA

Monte Carlo Methods＆By R．D．RICHTMYER

Transport Theory and Invariant Imbedding＆By RICHARD BELLMAN and ROBERT KALABA

Numerical Solution of Neutron Transport Problems＆By BENGT CARLSON

Problems of Reactor Kinetics＆By HARRY SOODAK

Core Kinetics＆By H．L．GARABEDIAN

Temperature Coefficients and Stability＆By HARVEY BROOKS

System Kinetics＆By T．A．WELTON

Rearrangement Inequalities and Non-Linear Stability Criteria＆By W．K．ERGEN