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Tea, coffee, and cocoa preparations.

Auteur(s): Ewell, Ervin Edgar - Spencer, Guilford L.
Éditeur(s): Govt. Print. Off.
Contributeur(s): Biodiversity Heritage Library
Collection(s): Biodiversity Heritage Library
Catégorie: Others
Le sujet(s): Tea--Adulteration. , Coffee--Adulteration. , Cacao--Adulteration.

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Record of experiments with sorghum in 1891.

Auteur(s): Wiley, Harvey Washington , Spencer, Guilford L.
Report of experiments in the manufacture of sugar at Magnolia Station, Lawrence, La. season of 1886-1887. Third report

Auteur(s): Spencer, Guilford L.
Methods for the investigation of canceling inks and other stamping inks.

Auteur(s): Ewell, Ervin Edgar

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Bibliotheca Alexandrina