In the third group the toxic substance results from pathological non-toxic products, which again produce a toxic agent, only under certain conditions. This group he calls auto-toxicoses, and includes in it poisonous substances, resulting from decomposition of the urine in the bladder, under certain pathological conditions, and giving rise to the condition called ammoniaemia. (_Medical News_ of January 7, 1891; from _Wiener klinische Wochenschrift_ of December 25, 1890.) As observed above, unfortunately the patients know nothing, nor can they be made to understand these conditions, that are only reached through labyrinthic pathological processes, and, what is still worse, this way of looking at disease is incompatible with the idea of specific-disease treatment, which to them looks more practicable and quick, and which is also more to their liking. They cannot see any sense in such reasoning, which to them is something eminently impracticable; neither can they see a reasonable being in the doctor who practices on such, as they call them, _theories_. The practical physician, however, sees in Professor von Jaksch's summary the turning-point of many a poor fellow's career,--from one of comparative health into one of organic disintegration, decay, and dissolution,--all the required processes starting visibly from the very smallest of beginnings; any obstruction in the urinary tract or intestinal canal being sufficient to start any of the conditions which end in toxaemia; and, from a careful observation running over several years, I do not think that I am assuming too much in saying that a balanitis is often the tiny match that lights the train that later explodes in an apoplectic attack or sudden heart-failure due to toxaemia; the organic and vascular systems being gradually undermined until, unannounced and unawares, the ground gives way and the final catastrophe occurs,--unfortunately, an occurrence or ending looked upon as unavoidable by the friends of the victim. They cannot see any danger; the idea that diseases have the road paved, not only for an easy entrance but an easy conquest, by the action of these toxic agents on the tissues, is something that they cannot grasp. These blood changes or blood conditions are things too intricate, and the physician who understands them is, to them, a visionary and unpractical man. These conditions are, however, neither new nor unknown, and there is really no excuse for the ignorance exhibited in these matters by the general public, as it is through the blood that this mischief takes place. They can reason in their impotent way, that they should drench themselves with "blood tonics" and all manner of nauseous compounds to "purify" their blood, but the simple, scientific truth is something beyond their understanding, as well as something that they steel themselves against.