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PUBLISHED SEMI-ANNUALLY AND DEVOTED TO THE THERAPEUTICS
OF RADIUM AND RADIO-ACTIVE SUBSTANCES.
Copyright 1925 by Radium Chemical Co.
Edited by Charles H. Viol. Ph. D., and William H. Cameron. M. D, with the as
collaborators working in the fields of Radiochemistry. Radioactivity and Radium therapy.
Address all communications to the Editors. Forbes and Meyran Avenues.
Pittsburgh. Pa.
Annual Subscription $1.00. Single Copies 50 Cents.
THIRD SERIES APRIL, 1925 No. 1
ANNOUNCEMENT
Beginning with this number, Radium will be issued semi-annua
the firstpart appearing in April and the second part in October. Radium
appeared as a monthly publication from April, 1913. until April, 1922,
since which time it has been issued quarterly. In the earlier years of
its publication, the literature on radiumtherapy was scant and scattered
—appearing largely in the European journals -and Radium served the
useful purpose of bringing the best of this literature to its readers.
v
Large-scale production of radium has come about in America since
the pioneer American production, in 1913. of high purity radium salts by
the Standard Chemical Company of Pittsburgh. It is now conservatively
estimated that 100 grams of radium—half of the world's total radium
produced to date—finds therapeulic employment in America, and American
medical journals now contain the most of the articles published on
radiumtherapy.
In changing to a semi-annual publication, it will continue to be the
policy of the editors of Radium to present to its readers articles which
represent authoritative work in the field of radiumtherapy and in the
allied fields of radioactivity and radiochemistry fso far as these have a
bearing on the therapeutic use of radium), with attention devoted particularly
to those articles which are less likely to reach the medical man
who docs not have access to a large medical library.
The Editors.