Resource Type
Collection
Serial/Series Title
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Trombone.
Patent, including illustration, for "a musical instrument slide and is more particularly designated as a bearing or stocking for a trombone or other similar instruments in which it is desirable to provide a smooth bearing for the slidable part of the instrument" (page 1, lines 9-13).
Date:
February 17, 1920
Creator:
Ackley, William D.
Object Type:
Patent
System:
The Portal to Texas History
Alsike Clover
Report discussing the distribution and cultivation of the leguminous crop alsike clover, which grows primarily in the northeastern United States. Topics discussed include soil requirements, seeding, uses, and insect enemies and diseases.
Date:
1920
Creator:
Pieters, A. J.
Object Type:
Pamphlet
System:
The UNT Digital Library
Influence of the Tractor on Use of Horses
This bulletin promotes the use of tractors on farms in the Corn Belt of the United States in order to increase agricultural productivity. It discusses the possible uses of tractors and the displacement of horses on farms.
Date:
1920
Creator:
Reynoldson, L. A. (Le Roy August), b. 1886
Object Type:
Pamphlet
System:
The UNT Digital Library