Prof. Carhart's New Book

Prof. H. S. Carhart has under preparation anew work on "Electrical Units and Measurements,"vhich promises to surpass anything yet published on that subject. He has been using, of late years, Stewart and Gee's work in his class in " Units and Measurements," considering it the besj: to date on this subject. Prof. Carhart's book will contain all the topics covered by Stewart and Gee, besides many others worked up by himself. The book will be generously illustrated and examples given under each topic trom actual work done in the laboratory under his supervisión. The book will probably be ready for market before the opening of college next fall.