Drs. M. P. Ravenel and Karl W. Smith of Madison report1 eighteen cases of tuberculous patients whose blood they examined by the Rosenberger method; they failed to demonstrate tubercle bacillus in the blood of a single case, and conclude: "This investigation has been confirmed by reports from all over the world, and the only conclusion that can be reached is that the Rosenberger method is of no value."
We wish to report ten such examinations, a number quite too small to warrant us in criticizing such an authoritative and conservative worker as Rosenberger, yet sufficient, we think, to permit us to question the above results and conclusions.
Clinical diagnosis, pulmonary tuberculosis; bacillary sputum.
Some microscopic fields, no tubercle bacilli; others had various numbers, the highest being nineteen in one field.
Patient had hip-joint disease three years before