"What is the use of a book without pictures or conversations?" asks Alice, disgustedly, just before taking her departure for Wonderland, where she finds no lack of animated discourse.
This book, like its predecessors in the series, is conversational in form and has as many pictures as the subject-matter calls for.
All boys and some girls, as well as their elders, take more or less interest in the marvels of chemistry. To give an elementary but useful knowledge of these marvels, chiefly by means of simple experiments clearly described by the writer and easily performed at home by any wide awake young reader, is the object of the following talks by "Uncle Paul."
The personal, biographical interest of the book is not to be overlooked. The boys Jules and Emile are the author's own children, faithfully portrayed even to the names they bear. In his captivating fashion the man of vast learning makes himself at once teacher and comrade to his young hearers, and we learn that "his chemistry lessons especially had a great success.