8 
of Iron was added, when immediately the blue color of Iodide 
of Starch appeared. The use of Bi-Chloride of Platinum 
for assisting the evolution of Hydrogen, originated with 
De la Rive. He thought that Mr. Loew had gone a step far- 
ther than either Sch6nbein or Graham in this most important 
discovery. 
Prof. C. A. Seely differed in his views from the gentle- 
men preceding him. He thought the conclusions not war- 
ranted by the facts. He doubted the existence of Hydroge- 
nium or Hydrogen as a metal, and claimed that the: facts 
could all be satisfactorily explained, as phenomena of adhe- 
sion or absorption, and he suggested a theory for the present 
case in accordance with these views. 
Dr. Paul Schweitzer read a 
NOTICE OF RECENT INVESTIGATIONS ABROAD IN CHEMISTRY. 
He gave an abstract of Mohr’s investigations on the analy- 
sis of mineral waters, and Liebig’s paper on Fermentation 
and the source of muscular power. He also referred to 
Rammelsberg’s classification of meteorites. In conclusion he 
presented the results of some analyses of pure lead which 
he had made, and in which he had endeavored to determine 
the small amount of impurities with the greatest possible 
accuracy. 
One of the analyses was as follows: 
Tron 0.0008 
Nickel 0.0001 
Zine 0.0001 
Cadmium 0.0001 
Zismuth 0.0111 
Copper 0.0030 
Silver 0.0041 
Antimony 0.0012 
Arsenic Trace 
Lead 99.9775 
elOG: 
