Comparative properties of wrought iron made by hand puddling and by the Aston process
By: by Henry S. Rawdon and O. A. Knight ...
Contributors: Knight, Oscar Allen, [from old catalog] joint author.
Publisher: U. S. Govt. print. off.
Published: 1929
Place of publication: Washington
Language: eng
Number of pages: 992
Subjects: Wrought-iron
Other titles: Hand puddled and Aston process, wrought iron.
Notes: Running title: Hand puddled and Aston process, wrought iron.

With : A course-shift indicator for the double-modulation type radiobeacon / by H. Diamond and F. W. Dunmore.  Washington : U. S. Govt. print. off., 1929.  Bound together subsequent to publication.