TESTIMONIALES

Below we give extracts from a few of the most récent testimonial to the merits of this popular séries : —

The Pennsylvania School Journal (April, 1869,) speaks thus of the séries : u The progress of science teaching in our schools has undoubtedly been retarded by the lack of suitable text-books. That want has been, in a great measure, relieved by the récent labors of Messrs. Rolfe and Gillet, in their double course, — a course of Handbooks for those who do not désire anything beyond elementary instruction, and another of more comprehensive text-books on the same sciences, — the last of which has just been published. Thèse textbooks commend themselves as the work of men whose expérience in the class-room has taught them the most effective methods of presenting scientific truth, and whose design has been to présent the results of the latest investigations in the several departments of each science treated. They aim throughout at nothing more than clearness, nothing less than accuracy. We remar-k, especially, the absence of any loose statement which could mislead the pupil or leave a half-formed idea. Teachers ail know the difficulty of banishing a false impression which has for a time been accepted and applied as fact. Instead of the weakness which tends to enfeeble the growing mind by presenting the study of science as a play lesson, -—a mere succession of interesting experiments, etc., — we have scientific truth here set forth as a study which the schoolboy may feel an honest pride in mastering. In none of thèse works is System sacrificed to simplicité as in some others of their class ; yet the text-books of the Cambridge Course yield to none

in point of interest At the end of each division of the subject,

a carefully prepared Summary has been inserted, thus binding together

and again classifying ail the matter previously given Indeed,

take the Cambridge Physics throughout, the Course is greatly in arîvance of any heretofore issued in this country. The publishers have