The foundation on which the newer therapy of syphilis rests is composed, in largest part, of material derived from the results of the serum tests which we have just been considering in Part One. It follows that, as the solidarity of a structure is affected by the strength or weakness of its foundations, so must the opinions expressed in Part Two for and against salvarsan and neosalvarsan be judged in accordance with the estimates formed of the strength or weakness of the serum tests.
CRITICISMS
Having seen that criticism of the serum test method exists, it cannot occasion surprise that the newer therapy of syphilis should also be criticized. Klotz67 is most outspoken in his objection to an employment of salvarsan or neosalvarsan as a routine method of treatment of syphilis. He admits that, occasionally, the newer remedies do possess a certain value, but,