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Discoveries respecting other material Substances.-Progress of Chemistry.
Discoveries respecting Electricity, Magnetism, Light, Heat.
Mechanical Philosophy and Inventions.-Physical Instruments.-The Re-
sult illustrated by the Cotton Manufacture-Steam-Engine-Bleaching
-Canals-Railways.-Improvements in the Construction of Machinery.
-Social Changes produced.-Its Effect on Intellectual Activity.

The scientific Contributions of various Nations, and especially of Italy. . 354

ERRATUM.-Page 57, line 13 from bottom, for "two external principles," read

two eternal principles."

[graphic][subsumed]

THE

INTELLECTUAL DEVELOPEMENT

OF EUROPE.

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