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HISTORY OF SCIENCE. 



The list given above introduces among other eminent names that 

 of an illustrious English man of science, whose researches have ad- 

 vanced not only astronomy, but many branches of physics, and who 

 is besides to be remembered as the author of the most valuable treatise 

 we possess on the logic of the sciences, namely, " An Introductory 

 Discourse on the Study of Natural Philosophy." A few brief notes 

 of the scientific labours of its author, SIR JOHN HERSCHEL (1792- 

 1871), may be not inappropriately placed before the reader in this 

 place. John Frederick William Herschel, the only son of Sir William 



