The beginning of the modern clinical conception of tuberculosis. Bayle gave the best description to date of the varieties of tuberculosis. He was first to use the term “miliary” to describe small tubercles and first to speak of tuberculous diathesis. He left an original description of the coarse character of the tubercle and its identity with the pulmonary, granular, and other varieties of tuberculosis. He recognized six types of pulmonary lesion. English translation, Liverpool, 1815.