Scientific Intelligence. A21 
ona large scale, is discernible. As the level of the water is 
highest at the intersection of two crossing billows, we can under- 
stand why in a region of two interfering sets of dips or archings | 
in the strata, such as we see indicated in the great defile of the 
Saco, there should coexist a series of loftier peaks than are any 
where else presented in the general mountain chain. - The same 
intersection of axes of different geological dates has probably pro- 
duced in like manner the very elevated and pyramidal group of 
mountains between Lake Champlain and Lake Ontario, to which 
the general name of the Adirondack range is given. The pro- 
digious elevation and insulation of ‘the peaks of the Alps have 
likewise manifestly originated in the want of coincidence in the 
great folds or axes, during the successive movements of elevation. 
SCIENTIFIC INTELLIGENCE. 
J. CHEMISTRY. . 
1. On new Magnetic Actions, and on the Magnetic Condition of all 
Matter; by Micnart Faravay, Esq., UV, C. an Tee 
perimental Researches in Electricity ” 20th series, sect. 26th. (Phil. 
Mag., Feb. 1846, xxviii, 147.)—The following is the order in which 
the several divisions of the subject treated of in this section of the au- 
thor’s researches in electricity, succeed one another :—1. Apparatus 
required, 2. Action of magnets on heavy glass. 8. Action of mag- 
nets on other substances acting magnetically on light. 4. Action of 
magnets on the metals generally. 5. Action of magnets on the mag- 
netic metals and their compounds. 6. Action of magnets on air and 
gases. 7. General considerations. 
In giving an account of the contents of this paper, any attempt to 
follow the track of the author in the precise order in which he relates 
the consecutive steps of his progress in this new path of discovery, 
would fail of accomplishing its object: for, by adhering to such a course, 
it would scarcely be possible to comprise within the requisite limits of * 
an abstract, the substance of a memoir extending, as the present one 
does, to so great a length, and of which so large a portion is occupied 
with minute and circumstantial details of experiments; or to succeed 
in conveying any clear and distinct idea of the extraordinary law of na- 
ture brought to light by the author, and of the important conclusions 
which he has deduced. 
Srconp Series, Vol. I, No. 3.—May, 1846. 54 
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