Q. Now, Professor, a few questions regarding your own research work. You have dealt particularly with hunger and thirst treatment in the case of kidney diseases. Is that correct?
A. Yes.
Q. So that you have personal medical and scientific experience regarding the observation of human beings when they undergo hunger and thirst treatment?
A. Yes.
Dr. Marx: Mr. President, before continuing with the examination of this expert witness, I should like to permit myself to make a suggestion. There are two types of possibilities for the examination of Professor Vollhardt regarding questions which interest us here. One possibility, the one which I myself consider the correct one, is that Professor Vollhardt should give us a continuous expert opinion regarding the entire complex of questions which are of interest here, and that at the end I would then permit myself to put a few concluding questions to the expert here as, of course, any defense counsel and prosecutor is entitled to do, too. The other possibility would be that I put a number of individual questions to the expert which would deal with the subject chronologically and technically from a medical point of view. But, that would distort the context and would not give as clear a picture of the situation as would the first possibility. I should like therefore, Mr. President, for you to make a decision whether the expert is to give an opinion in the form of a lecture first.
Presiding Judge Beals: If counsel would propound to the witness a hypothetical question covering the basic facts which here are at issue, and if the witness would answer that hypothetical question without further question from counsel and make his response brief and to the point, and without enlarging too much upon the fact that salt water is not fit to drink and is injurious, which the Tribunal very well knows, we might proceed as suggested by counsel. The hypothetical question should cover the facts here at issue, that experiments were tried upon a group of people, a control group, a noncontrol group, and others, then the witness may answer that question without further interruption by counsel if his answer is, as I said, brief and not enlarging too much on generalities.
Dr. Marx: Very well, Mr. President.
Q. Now, Professor, have you sufficient insight into the planning and carrying out of the so-called sea-water experiments to give an expert opinion on that subject?
Witness Vollhardt: Yes.
Q. What documentary evidence did you have?