Transactions of the AMS. Year 1940. Volume 048. Number 03.


Analytic systems of central conics in space
J. L. Coolidge
359-376


On circavariant matrices and circa-equivalent networks
Richard Stevens Burington
377-390


The position of the radical in an algebra
Marshall Hall
391-404


Integers of quadratic fields as sums of squares
Ivan Niven
405-417


On finitely mean valent functions. II
D. C. Spencer
418-435


Integral sets of quaternion algebras over a function field

436-450


Order types and structure of orders
André Gleyzal
451-466


Expansions of analytic functions
R. P. Boas
467-487


On the integro-differential equations of purely discontinuous Markoff processes
Willy Feller
488-515


On linear transformations
R. S. Phillips
516-541


On a type of algebraic differential manifold
J. F. Ritt
542-552