Lord Campbell: I do not remember that. I think it was said that it was contracted.
Mr. Baron Alderson: According to my note, Dr. Harland said that the heart was contracted, and contained no blood.
Examination continued: The lungs were not congested, nor was the brain. In the case of animals which have recovered, the paroxysms have subsided gradually. I never knew a severe paroxysm followed by a long interval of repose. I have experimented upon the discovery of strychnia in the bodies of animals in various stages of decomposition, from a few hours after death up to the forty-third day, in which latter case the body was quite putrid. It has never happened to me to fail to discover the poison. I have experimented in about fifteen cases.
Supposing a person to have died under the influence of strychnia poison in the first paroxysm, and his stomach to have been taken out and put into a jar on the sixth day after death, must strychnia have, by a proper analysis, been found in the body?—Yes. If the strychnia be pure, such as is almost invariably found among medical men and druggists, the test is nitric acid, which gives a red colour, which in a great measure disappears on the addition of protochloride of tin. If the strychnia be pure, it does not undergo any change on the addition of sulphuric acid, but on an addition of a mixture of bichromate of potash, with several other substances, it produces a beautiful purple, which changes to varying shades until it gets to be a dirty red. There are several other tests. In this case the stomach was not, in my opinion, in an unfavourable condition for examination. The circumstances attending its position in the jar, and its removal to London, would give a little more trouble, but would not otherwise effect the result. If the deceased had died from strychnia poison, it ought to have been found in the liver, spleen, and kidneys. I have seen this poison found in similar portions of animals which had been killed by it. I have also seen it found in the blood; that was by Mr. Herepath, of Bristol.
Could the analyses be defeated or confused by the existence in the stomach of any other substance which would produce the same colours?—No. Supposing that pyrozantine and salicine were in the parts examined, their existence would not defeat the analysis. Pyrozantine is very unlikely to be found in the stomach. It is one of the rarest and most difficult to be obtained. The distinction between pyrozantine and strychnia is quite evident; pyrozantine changes to a deep purple on the addition of sulphuric acid alone, and the bichromate of potash spoils the colour. In strychnia no change is produced by sulphuric acid. It requires the addition of the bichromate to produce the colour.
Supposing the death to have been caused by a dose of strychnia, not more than sufficient to destroy the animal, would it be so diffused by the process of absorption that you would not be able by these tests to detect it in any portion of the system?—No; I believe it would not.
Had that question occupied your attention before you were called upon to give evidence upon this trial?—It had.
What is your reason for stating that strychnine, when it has done its work, continues as strychnine in the system?—Those who say that some change takes place argue that as food undergoes a change when taken into the body, so does the poison; it becomes decomposed. But the change in food takes place during digestion; consequently its traces are not found in the blood. Substances like strychnine are absorbed without digestion, and may be obtained unchanged from the blood. They may be administered in various ways.
In your judgment will any amount of putrefaction prevent the discovery of strychnine?—To say that it is absolutely indestructible would be absurd, but within ordinary limits, no. I have found it at the end of forty days.
What is the probable relative rapidity of the action of strychnine in an empty and a full stomach?—The emptier the stomach the quicker the action.