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occur in considerable quantities. In fact, the company 
working it, state that they consider that it covers a tract_of 
between six and seven hundred miles in extent. The vein is 
about fourteen feet thick. On examination it is found to be 
a very “fat” coal and yields a large percentage of good coke, 
whilst the ash remaining is very white and retains very per- 
fectly the form of the original mass of coal. The ash, also, 
has disseminated throughout it minute. glistening points 
which apparently are scales of mica. Some of the specimens 
show distinct traces of organic remains, as rootlets of Stig-. 
marza and mineral charcoal. 
THE PRESIDENT said that he was well acquainted with the 
seam from which this coal was obtained as it occurs in the 
state of Ohio and runs across the border into Pennsylvania, 
where at one point, it is known as the “ Darlington Coal.” 
In many parts the coal is of very good quality but at points 
it runs out into a bituminous shale which is rich in fossils. 
Dr. P. ScHWEITZER made some remarks on the subject of 
the substance known commercially as Dried Blood, and pre- 
sented a table of a series of thirteen examinations, made to 
ascertain the quantity of Albumen present, as this is the im- 
portant substance in this material, it being used for clarifying 
sugar. The Albumen was estimated as insoluble Albumen 
by coagulating, washing and weighing. The_ percentage 
ranged all the way from 52 to 85 per cent. showing a great 
variation in this substance as it comes into the market. 
He also presented the results of an Analysis of Newark 
Sandstone; which was of interest, as he had made it at the 
request of Dr. Newberry, as bearing upon Prof. Wurtz’s paper 
read at a late meeting of the Society. The analysis was 
made by first acting upon the mineral with Hydrofluoric- 
acid, in the manner alluded to at a previous meeting, and the 
quantities found were as below. 
Undissolved Mineral, 1:27 
Silica, 67°45 
Alumina and Tron, 16°65 
Magnesia, Line and Alkalies, 14°64 
