The intracellular replication of Cowdria ruminantium (Cowdry, 1926) is described in reticulum cells of
lymph nodes several days prior to the appearance of rickettsial colonies in vascular endothelial cells. This
is suggestive of a developmental cycle of the parasite in the lymph nodes. The subinoculation of suspensions
of these glands resulted in transmission of the disease.
The journals have been scanned in colour with a HP 5590 scanner; 600 dpi. Adobe Acrobat v.11 was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.