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New Releases by Howard PorterHoward Porter is the author of Chemical Treatments of Crop Seeds in Lebanon (1959), Laboratory Manual for Botany of Seed Plants (1956), Maté (1950), Recent Developments in Seed Technology (1949), Crop Development in Paraguay (1947).
Chemical Treatments of Crop Seeds in Lebanon
Laboratory Manual for Botany of Seed Plants
Recent Developments in Seed Technology
Crop Development in Paraguay
Furthur Experiments with the Iowa Air Blast Seed Separator for the Analysis of Small-seeded Grasses
Current School and College Education in Agriculture for Iowa Farmers
Testing the Quality of Seeds for Farm and Garden
Hemp Production Experiments
The Family at the Eucharist ... Twelve Lessons, Etc. (Short Course Lesson Series. Senior.).
The Viability and Germination of Seeds of Convolvulus Arvensis L. and Other Perennial Weeds
Our search for God. [A course of lessons chiefly on the New Testament.] For senior groups and classes
Experiments with Modified Techniques for the Determiniation of Purity and Viability of Bluegrass Seed, Poa Pratensis L.
Indexing Farmers' Seed Lots for Seed-borne Organisms and Response to Seed Disinfectants
Dust Treatments for Seed Corn Diseases
Analysis of Factors Conditioning Learning in General Psychology [A Thesis Submitted to the Faculty of the Graduate School of the University of Minnesota, by Howard Porter Longstaff, ...].
Analysis of Some Factors Conditioning Learning in General Psychology....
The Resistance and Physiological Reaction of Strains of Cucumbers to Mosaic
A Comparative Study of Mental and Educational Measures Including an Analysis of the Speed and Accuracy Factors
A Study of Phomopsis Vexans (Sacc. & Syd.) Harter on Eggplant ...
The Influence of Different Systems of Check Rows in Computing Yields of Corn in Ear to Row Tests ...
Problems of an Industrial Bureau
The Family at the Eucharist
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