Resource Type

Language

Improvement in Compounds for Destroying Worms in the Cotton-Plant. (open access)

Improvement in Compounds for Destroying Worms in the Cotton-Plant.

Patent for a method of "destruction of the cotton-worm, and this object is accomplished by sprinkling the plants on which the worm feeds with a solution of arsenic in water." (Lines 8-12) Includes instructions.
Date: June 30, 1874
Creator: Mitchell, Thomas W.
System: The Portal to Texas History
Dental Bite-Tray. (open access)

Dental Bite-Tray.

Patent for a bite tray usable for an array of mouth sizes. The material provides better comfort in the mouth of the patient, as well as better comfort for the operator.
Date: March 30, 1915
Creator: Sanders, Mastin E.
System: The Portal to Texas History