Bauhaus-Universität Weimar

Reports of Visits to Foreign Laboratories, vol. 1 (1907) [Illustrated Typoscript in 7 volumes] Reproduced with the kind permission of Dr. Cecil E. Leith
Benedict, Francis Gano
uses a special fo-m of collecting vessel with bulbs at the side 
designed by himself, A loose fitting stopper or plug prevents 
the acid from huhbling out. Methyl orange or "better coralin is 
used as an indicator. He uses automatic pipettes for measuring 
the standard sulphuric acid solution. 
Photographs of '>of. Armsby’s apparatus .—When in America 
Prof. Hagemann had taken a lafcge series of photographs of Prof. 
Armshy*s apparatus at State College. Arrangements were made 
with him whereby a complete collection of photographs from these 
negatives was obtained. They are now on file in the Nutrition 
Laboratory in Boston. 
General criticism of Prof. Hagemann*s laboratory.—The appa¬ 
ratus and methods are in every detail far too complicated. Prof. 
Hagemann. has sought to obtain the highest degree of accuracy in 
certain manipulations with an apparent utter disregard to the 
influence of other factors. No expense has been spared in equip¬ 
ping the laboratory and in many cases large sums of money were 
spent with but little return. The installation of a very ex¬ 
pensive storage battery for securing a regular electric current 
to be used for warming air currents is perhaps the most striking 
illustration of this point. 
Prof. Hagemann’s natural ingenuity and mechanical ability 
has led hin to attempt to modify almost every piece of appara¬ 
tus of whatever construction in use in connection with his 
Inasmuch as this laboratory is the most central one in 
Europe in which calorimeter experiments similar to those 
carried on in Aiçei-ica are contemplated, it has been visited by 
a number of European specialists and I found in my subsequent


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