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Excerpt from The Chemical Nature of the Antigenic Substances in Bacillus Coli: Dissertation Presented in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in the Graduate School of the Ohio State UniversityThe chief objection to the antigenic nature of fats and lipoids has been that the investigators overlooked the possibility of a protein constituent being present. Thus the other extract, or other extracted materi...

Excerpt from The Chemical Nature of the Antigenic Substances in Bacillus Coli: Dissertation Presented in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in the Graduate School of the Ohio State UniversityBut of what do these changes consist? Are they true chemical reactions which follow the usual laws of chemis try, or are they due to alterations in surface energy and molecular attraction in a physical or physico...