There appeared recently in The Journal (Jan. 10, 1914, p. 125) an article by Steensland and Weiskotten advocating the use of loan collections of slides in teaching pathologic histology, in preference to the method of giving to the class each year stained or unstained sections which become the permanent property of the students.
The question of histologic class material comes up now and then in every pathologic laboratory in which teaching is done. Since the choice of the plan of dealing with the problem is rather important, a discussion of the subject seems timely. Steensland and Weiskotten have presented clearly the advantages in the use of the loan collection in teaching, namely, that (1) there is a saving of time for both student and teacher (or technician); (2) the preparations are better stained and mounted, and therefore more satisfactory for demonstration and study, and (3) rare material that would be