Instructions for the installation and maintenance of Marvin water-stage registers with specifications.  Circular J
By: Instrument Division.  By Roy N. Covert, meteorologist.
Contributors: Covert, Roy Norton.
Publisher: Govt. Print. Off.
Published: 1921
Place of publication: Washington
Language: eng
Number of pages: 24
Subjects: Hydraulic engineering -- Instruments.
Notes: At head of title: W. B. no. 746.  U. S. Department of Agriculture.  Weather Bureau.  Charles F. Marvin. chief.