Problems in Solutions.

Whether it has been a fault in the public school system of America or simply a trait more common to certain minds, the matter of simple proportions is—to the average nurse and oftentimes to physicians as well—most confounding. When the student nurse encounters the elementary arithmetic associated with the making of solutions or the primary problems of chemistry, she is generally, in the language of the street, "up against it." Possibly no one has realized it better than Miss Sullivan, who has had broad teaching experience. How much good such a book will do is problematic. In the first place, one who explains these arithmetical problems should have a reader with patience and a certain amount of intelligence. After this step is successfully passed, Miss Sullivan may get her book across. To one, on the other hand, who has even a fair acquaintance with lower mathematics, the book seems unnecessarily