This is an enlarged edition of an earlier publication, which appeared in Budapest in 1909. The author holds that many diseases now thought to be separate entities are, in reality, manifestations of concealed tuberculosis. Among these diseases are anemia, neurasthenia, thyrosis, hysteria, epilepsy, rheumatism, neuralgia, rachitis tarda and dysmenorrhea. It may be remembered that this idea, as far as concerns rheumatism and arthritis, was brought before the medical profession in France by Poncet and Leriche, whose book "Le rheumatisme tuberculeux" appeared in 1909. Poncet held, as does the present author, that arthritis is a manifestation of tuberculosis instead of tuberculosis being a complication of arthritis. Dr. Hollós presents sixty cases of the diseases mentioned in support of his contentions. The remedy for these intoxications, the author believes and recommends, is Spengler's immune blood. The author remarks in his preface that he has met with much disbelief and lack of understanding