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[Montgomery County School District 15 Resources and Liabilities] (open access)

[Montgomery County School District 15 Resources and Liabilities]

A list of financial resources and liabilities for Montgomery County School District 15, written by P. R. Clarke for C. C. Cox on a blank form intended for taking student censuses. Envelope is included.
Date: February 3, 1922
Creator: Clarke, P. R.
System: The Portal to Texas History
Development of Aeronautical Engines by the Army and Navy (open access)

Development of Aeronautical Engines by the Army and Navy

Different aircraft engines are categorized as being of interest to only the Army or Navy or to both armed services. A listing of the different engines is presented along with some statistics, namely, horsepower.
Date: March 3, 1921
Creator: unknown
System: The UNT Digital Library