27 APRIL 1889, Page 24

A Correlation Theory of Chemical Action and Affinity. By T.

Wright Hail. (Remington.)—The want of a theory for chemistry, the writer says, has induced him to come forward and offer with all humbleness a theory of chemistry. Mr. Hall's theory is wonder- fully vast and indefinite, and somewhat incoherent; yet we cannot say that he has solved the difficulty, or rendered the approach thereto in any way easier. His grasp of the correlation of chemical and physical forces is broad, but it is scarcely close enough to enable him to offer a symmetrical correlation theory.