Experiments with the Elementary Voltaic Battery. 33 
will send you some of it, and will beg of you to give it a better 
trial.* The coal now used in the Mediterranean, I believe, is all 
brought from England, and should this turn out to be an extensive 
bed of good coal, the advantages to the neighboring regions will be 
immense. Cornay] is in quite an elevated situation, probably, four 
‘thousand feet above the sea, and, although the country between, is 
extremely rough, yet by following the windings of the ravine, on 
the edge of which, the mine is situated, a rail-road may be construct- 
ed at no very great expense: such a thing, I understand, is now in 
contemplation, _ 
P.S. [have ju just seen a letter from Mr. Brattell, the agent at a 
mine. He says, it is situated, as far as he can judge, in Lat. 
56’ N. Lon. 35° 53’, and that the bed of coal is from three feet two 
inches, to three feet four inches in thickness, and that they are 
pushing their investigations above and below this spot. He thinks 
he has also discovered strong indications of coal on the eastern side 
of Mount Lebanon, and has little doubt that lead may be found on 
the same range. In digging for coal at Carnayl, they have brought 
a bed of iron ore to light: indeed, in asscending the western side 
of Lebanon, the oxides of iron ores mingle so largely with the na- 
tive rocks, as to leave no doubt that this mineral may be procured 
in very large quantities. 
Arr. IV.—Evperiments with the Elementary Voltaic Battery ; by 
James B. Rogers, M. D. Professor of Chemistry, and James 
Green, Philosophical Instrument Maker. 
No subject of scientific investigation has produced more detailed 
observations, or excited a greater degree of philosophical curiosity, 
than Electricity. The past century has been most fruitful in dis- 
coveries connected with this subject, and it has now become one 
of great scientific value. The successive accumulation of facts, as 
collected by different observers, and the general laws which have 
been deduced from them, give to it an interest, which can be ap- 
preciated only by those who, devoted to similar pursuits, are ena- 
bled to estimate the importance, sometimes, of a great number of 
minute circumstances. It will, we think, be readily acknowledged, 
* It is the black bituminous coal, of a good quality.— Ed. 
Vou. XXVUI.— 5 
