1883.] Physiology. 443 
sions before considered so logical, until the inexpert looker-on is 
inclined to despair of ever seeing certainty finally arrived at. 
Some investigators in our own country, well fitted by talent 
and education to enter this field of research, have arrayed them- 
seives in the opposition against views concerning the action of 
bacteria in certain diseases, which have found among other workers 
general acceptance. 
The Bacillus tuberculosis of Koch has gained a world-wide rep- 
utation. But Dr. Formad (Phil. Med. Times, Nov., 1883), has 
come to the conclusion that the Bacillus is not the cause of the 
disease, but is found in abundance in tubercular tissue simply be- 
cause it finds there its most agreeable food. Formad regards 
tuberculosis as primarily due to an anatomical defect, namely, a 
superabundant development of connective tissue and a conse- 
quent narrowing of the lymph spaces of the tissue, thus making 
the latter much more subject to pathological change than is nor- 
mally the case. The artificial production of tuberculosis brought 
about by Koch through the injection into living animals of mat- 
ter infected with Bacilli, Formad does not regard as of great 
Weight, for it was found during the researches on diphtheria, car- 
ned out by Drs. Wood and Formad, that the placing of an in- 
€micrococcus which I have found in a certain number of 
Pus cells in eve 
` 
'S an accidental parasite which has nothing to do with the special 
aia 
revealed the presen 
than this, Micrococcus 
Means of 
Ned to 
characte, ats, which make it possible to establish species having - 
inthe aeaa as well defined as have many plants much higher 
- Dr. Schmidt is heretical upon the whole subject of the occur- 
