His thesis is also in the MSU Archives. Topics of the manuscripts mainly cover phosphorus. Series two, correspondence, are letters to Green from researchers of geology, soil, phosphorus, and chemical testing of various crops. The photographs are geology formations and rocks related to phosphorus. The final series is scrapbooks of Green's many newspaper and magazine articles written between 1930 and 1966.
Topics cover phosphate fertilizer, phosphorus mineral, and sugar determination and tests.
Box 1 1. Summary of the work on sugar determinations 2. Method for the extractions of sugar from apple, tree leaves, bark and wood for the purpose of its determination 3. Determination of reducing substances in apple leaves, and Determination of sugar in apple leaves by alcohol extraction 4. Difficulties encountered with the Schaffer and Hartman crysrous titration of reduced copper in sugar determinations 5.