Dr. Tidy further stated that, taking the whole of the symptoms, they undoubtedly were _not_ those of arsenical poisoning, nor did they point to such, but were perfectly consistent with death from gastro-enteritis, not caused by arsenical poisoning at all; and that, had he been called upon to advise, he should have said it was undoubtedly not arsenical poisoning, and that his view had been very much strengthened, to use his own words, by the result of the post-mortem, which distinctly pointed _away_ from arsenic. Then there was the evidence, in the same direction, of Dr. Macnamara, the president of the Royal College of Surgeons, and its representative on the General Medical Council of the Kingdom, which is summed up in the general question put to him and his answer: Question: Now, bringing your best judgment to bear on the matter--you having been present at the whole of this trial and heard the evidence--in your opinion, was this death from arsenical poisoning? Answer: _Certainly not_. In cross-examination Dr. Macnamara stated that, to the best of his judgment, Mr. Maybrick died of gastro-enteritis, not connected with arsenical poisoning, and which might have been caused by the wetting at the Wirrall races. Dr. Paul, professor of medical jurisprudence at University College, Liverpool, and pathologist at the Royal Infirmary, stated he had made and assisted at something like three or four thousand post-mortem examinations, and that the symptoms in the present case agreed with cases of _gastro-enteritis pure and simple_; that the finding of the arsenic in the body, in the quantity mentioned in the evidence, was quite consistent with the case of a man who had taken arsenic medicinally, but _who had left it off for some time, even for several months_. A TOXICOLOGICAL STUDY So positive were Dr. Tidy and Dr. Macnamara of their position as to the effect of arsenic on the human system, that they subsequently published “A Toxicological Study of the Maybrick Case,” thus challenging medical critics the world over to refute them. From this study the following, in tabular form, is taken, in order to contrast the symptoms from which Mr. Maybrick suffered with those which, it will be generally admitted, are the usual symptoms of arsenical poisoning: ARSENICAL POISONING MR. MAYBRICK’S CASE