Bauhaus-Universität Weimar

Reports of Visits to Foreign Laboratories, vol. 3 (1913-16) [Illustrated Typoscript in 7 volumes] Reproduced with the kind permission of Dr. Cecil E. Leith
Benedict, Francis Gano
In speaking of the radium emanation experiments made formerly by 
Staehelin and his associates in the His clinic Professor Hunts said he 
felt that they were useless. In commenting upon the article presented 
by Fleischmann at the Berlin Physiological Society, in which Friedmann 
spoke about fever and pituitrin, Hunts remarked that he was astonished, 
as was I, to have him refuse to report how the solution was made 
Zuntz considered Haldane very clever and made many interesting 
comments as to his absent-mindedness and his devotion to his pipe. 
He said that Haldane always lighted his pipe as soon as he left his 
room to come downstairs. 
Zuntz saw Douglas on Teneriffe and got a very good impression of 
him. He was by no means satisfied with the Haldane carmine titra¬ 
tion, although he saw Douglas make the titration a hundred times on 
Teneriffe and not get a red color. In discussing the Haldane titra¬ 
tion method he said he disliked the way in which Haldane pricked his 
finger and then shook it. He asked Haldane if he had ever seen a 
needle and as he said he had not, Zuntz sent him one. In his method 
of titration Haldane uses but 6 to 7 drops of blood and yet finds 
carbon monoxide and oxygen in the blood to 20.73 per cent, i.e., four 
figures, but really can determine only one part in six or seven. 
We spoke of the question of the secretion of oxygen and Zuntz 
thought it was not true that there is such a secretion. He believed 
that during work carbon monoxide is not in equilibrium, for some of the 
blood must be almost oxygen-free during severe work and only in work 
does Haldane find that a secretion of oxygen takes place. Zuntz 
also believed that carbon monoxide may actually be absorbed by the 
lung tissue. 
In discussing the Douglas bag method Zuntz said that it was simply


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