The trial opened on December 4, 1871, at Annapolis, and lasted nearly two months. The circumstantial evidence certainly went no farther than to render it probable that if General Ketchum died of poison it was administered by Mrs. Wharton. The State attempted to prove as a motive that Mrs. Wharton owed the deceased money. They were signally unsuccessful in this, however; so that a very intelligent member of the jury said to the writer since the trial, "Whether Mrs. Wharton did or did not poison General Ketchum, certainly the State completely failed to prove a motive." The defence admitted that Mrs. Wharton had bought tartar emetic near the time of the alleged poisoning, but proved that she was in the habit of using it externally as a counter-irritant, and that it was purchased in the most open manner, through a third party, not with the secresy that marks the steps of the poisoner.
Thus the whole case centred in a rather remarkable degree upon the expert testimony, and the very point of it all was the chemical analysis. This is not the place to follow out in detail the scientific testimony, but only to point out some peculiarities of it. Almost all the medical witnesses for the prosecution were colleagues of Professor Aiken, none of them men of eminence in toxicological science—surgeons, physiologists, obstetricians, the whole faculty, trying apparently to hide the nakedness of their colleague. Never was strong language more justifiable than that of Mr. Hagner, when he said, "It seemed that the University of Maryland was on trial, and that blood was demanded to support it."
After all, the testimony of most of these gentlemen amounted only to this: that they did not believe the death of General Ketchum could have occurred from natural causes. On the other hand, the numerous medical witnesses for the defence, unconnected by any bond of common interest, testified that natural causes, were sufficient to account for the death; many of them asserting that the case in all its symptoms and post-mortem appearances tallied precisely with the so-called fulminating form of cerebro-spinal meningitis, which was prevalent in Baltimore at the time of General Ketchum's death.[17]
The medical witnesses for the defence further called attention to the fact that the symptoms of General Ketchum's illness were wholly different from those produced by tartar emetic, and some denied that the latter could have caused the sickness. The chemical evidence for the prosecution was triumphantly refuted. It was shown that antimony did not conform in its reactions with at least one of the tests, which Professor Aiken said his precipitates did; that almost all the other reactions could be closely simulated with ordinary organic bodies; that the processes used were those universally condemned by authorities; and that carelessness was everywhere so manifest in their conduction as to entirely vitiate any results. It was also proved that Professor Aiken had simply estimated the amount of tartar emetic in General Ketchum's stomach by the ocular comparison of the bulk of precipitates, neither of which could have been pure, and in neither of which was the existence of antimony really proved. To weigh a precipitate was a labor not to be thought of when nothing more important than the life of a woman was involved: guessing was all that such a trifling issue demanded!
The most extraordinary event of this most extraordinary trial occurred when the chemists for the defence had completely broken down the testimony of Professor Aiken. With the knowledge, it is said, of at least one of the judges, without the presence of a representative of the defence, or even of a legal officer, the body of General Ketchum was secretly exhumed by the doctors who had shown themselves so eager for the execution of Mrs. Wharton. The viscera, which they removed, were put into the hands not of a chemist of national reputation, but of an individual who had been advanced from the position of hospital steward at Washington to that of professor of chemistry in a small local institute at Baltimore. This professor, when on the witness-stand, was singularly confused as to his weights and measures, and finally shared the ignominy of his predecessor. The defence had several chemists at Annapolis of world-wide reputation and unspotted integrity. If the prosecution really believed that General Ketchum had been poisoned, if they really did expect tartar emetic to be found, why did they not allow the presence of these gentlemen at the analysis, and thereby ensure the condemnation of Mrs. Wharton? The conviction is irresistible that they were afraid of the truth—that they were simply determined to procure the desired verdict at all hazards and by any means. Yet this was the procedure for the completion of which the court suspended the trial for two days, because, as Chief-Justice Miller stated from the bench, "it thought the ends of justice demanded it"! Is any further evidence needed of the strange ideas, of the perversion of truth and justice, which have grown out of the American method of using expert testimony?
Before leaving this trial I desire to quote from advanced sheets of the edition of Dr. Taylor's great work on medical jurisprudence, now passing through the press. Reviewing the trial in London with that freedom from bias which the isolation of distance produces, he says: "The trial lasted fifty-two days, and an astonishing amount of evidence was brought forward by the defence and prosecution, apparently owing to the high social position of the parties, for there is nothing, medically speaking, which might not have been settled in forty-eight hours. The general died after a short illness, but the symptoms, taken as a whole, bore no resemblance to those observed in poisoning with antimony; and but for the alleged discovery after death of tartar emetic in the stomach, no suspicion of poisoning would probably have arisen.... The chemical evidence," he adds, "does not conflict with the pathological evidence, for it failed to show with clearness and distinctness the presence and proportion of poison said to have been found. The evidence that antimony was really there was not satisfactory, and that twenty grains were in the stomach wholly unproven."[18]
What would have been the course of this trial if expert testimony were established upon proper principles? Professor Aiken having shown his complete incompetency in the Schoeppe case, the analysis would have been entrusted to some skillful chemist, who by failing to discover poison would have established the innocence of Mrs. Wharton, or by bringing positive results into court have ensured conviction; or, Dr. Aiken having made the analysis, and having broken all the laws of toxicological evidence, his testimony would have been ruled out, and the case dismissed because the bungling of the State's witness had destroyed the evidences of guilt or of innocence.
In January, 1873, Mrs. Wharton was tried at Annapolis for attempting to poison Eugene Van Ness. The facts of the case are briefly as follows: Mr. Van Ness, whose relations with the Wharton family had been extremely intimate for many years, was a bank-clerk, but during the spring and early summer of 1871, besides attending to his regular duties, was employed in settling a large estate. He habitually rose early, often at 5 A.M., and generally worked until eleven o'clock at night. During this period he suffered from severe nervous headaches, and probably from other symptoms of an overworked nervous system, but on this point the testimony disagreed. His stomach is at all times so sensitive that brandy nauseates him. On the 19th of June, after taking some claret on an empty stomach at Mrs. Wharton's, he felt very badly, suffering from lightness of the head or giddiness and general wretchedness, with stiffness and numbness in the back of his neck. On the 20th he stopped at Mrs. Wharton's about 4 P.M., having eaten nothing for seven or eight hours, and took raspberries with cream, and drank claret. This claret, he stated, "had a taste like peach leaves."[19] Directly after this he had an attack similar to, but much more violent than, that of the day before. Some little time after this, whilst in a condition of profound relaxation, he took some brandy, and at once emptied his stomach by a single spasmodic effort of vomiting, with immediate relief. The weather was extremely hot during the whole time in which the various attacks here narrated took place.
On the 24th of June, Mr. Van Ness rose at 5 A.M., but was forced to return to bed by a severe headache. At 9 A.M., after dressing, he said to his wife that he would not eat at home, but would stop at Mrs. Wharton's on his way to the office, to get a cup of her "nice black tea." A piece of toast was all he ate before his return to Mrs. Wharton's from the banking-house at 4 P.M. Mrs. Wharton then offered him some lager beer, and, partly at his own suggestion, put into it something out of a bottle labeled "Gentian Bitters." He found the liquid so bitter that he took but a part of it.[20]