With a literature already overcrowded with the various causes, both scientific and practical, of infant diarrhea, especially during the heated term, one is tempted to commence a paper of this character with an apology. And yet I feel that any fact which may either prove or disprove existing theories, should be set forth for the possible aid it may render other investigators along the same line.
For many years past the digestive disturbances of infants have occupied more space in our researches than all other conditions combined, and, although much has been gained and chronicled by these researches, I may safely say that up to the present moment no really definite conclusions have been reached. During all these years a large number of careful and capable students have conducted investigations on this subject, leaving in their trail almost as many theories as there were investigators, but from among all these,