1922] CORWIN, THE "use" IN MUSEUM 159 



any other country described in the text-book ! Again, try to reahze how 

 Httle exact information classes in industrial geography of Wisconsin 

 derive from their studies, unless they either visit the scene of the indus- 

 tries and actually observe the operations, or see them projected on the 

 screen by means of lantern slides or films. It is unfortunately true that 

 pupils in several of the city schools are absolutely lacking in correct 

 ideas of the agricultural methods and the products of their own state. 

 Obviously, such pupils cannot be taken to the farms and dairies for 

 first-hand information of these things. But it is entirely possible to 

 convey to them reasonably definite notions about farming and dairying 

 operations by means of lantern slides. Teachers in schools not 

 equipped with projection apparatus have testified to the difficulty of 

 presenting this subject without slides. 



Natural history lessons are best taught with actual specimens as 

 illustrative material, but specimens or even models of the different 

 plants and animals are not easily obtainable. What better substitute 

 for specimens could be asked than colored lantern slides ? 



To meet this great need for illustrative material in class work the 

 Museum maintains a collection of over 32,000 lantern slides, most of 

 which are colored, and all of which can be borrowed by the Milwaukee 

 schools. Many of these are made up into sets on definite subjects and 

 can be obtained on short notice. The remainder of the collection can 

 also be borrowed, the slides being selected and the sets assembled as 

 desired, on any topic of Natural Science, Anthropology, History, 

 Travel, or Natural Resources. 



Primarily for the benefit of the grade teacher whose time is taken 

 up with numerous duties, the Museum revised many of its loan sets of 

 lantern slides, and during the summer vacation, prepared a new cata- 

 logue of such sets. In this catalogue the sets are grouped according to 

 the grades for which they are intended. The arrangement of slides in 

 the sets and the order of the sets in the catalogue are based upon the 

 study outlines from the office of the Superintendent of Schools, as 

 checked by the experience of the Museum in loaning slides in past 

 years. That the new arrangement facilitates the selection of slides by 

 teachers of different grades is demonstrated by the fact that twice as 

 many slides were borrowed by schools in 1922 as in 1921. 



The Museum desires to increase its circulation of slides, but it is 

 more desirous of extending its slide service to a greater number of 

 schools than take advantage of it at present. And so, any 6A teacher 

 who wants a set of slides on "Cotton" or "Irrigation," or the 8B 



