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VISUAL EDUCATION
especially such as illustrate the migration and nesting habits of birds, the economic cases lead when it comes to an all-year-round demand. And it is a demand that is decidedly on the increase.
"Kecently I asked some of the grade teachers to analyze the thing for me. 'Oh, it's in the air,' they will tell you. It's Chicago. We're a commercial city. Our pupils see these products advertised everywhere, they watch the smoking chimneys, and they're naturally curious to find out what is being produced inside all these busy factories.'
"I am particularly interested to know that the Society for Visual Education is producing a series of films on vocational education which will be adapted to school use. They will meet what is today a very vital need, and perform an important service to education."
One of the prime favorites of the children is the exhibit on graphite, with its step-by-step illustrations of the making of a lead pencil. In the case are specimens of the following raw products and stages of manufacture :
Lump graphite.
Graphite as mined.
Flake graphite.
Graphite lubricants — for use in place of oil.
Amorphous graphite — ground for use in paint, stove polish, etc.
Clay — to be mixed with graphite for lead pencils.
First stage in the manufacture of pencils — cedar slab.
Second stage — slab grooved for graphite "leads."
Third stage — graphite leads in place.
Fourth stage — graphite leads glued between two grooved slabs.
Fifth stage — pencils half separated from slab by a revolving cutter.
Sixth stage — pencil separated from slab.
Seventh stage — pencil after varnishing.
INDUSTRIAL CONCERNS CO-OPERATE
As an instance both of the widespread demand for economic material and of the many-sided co-operation the extension service has constantly available, Dr. Simms told of one of the country's largest corporations in the manufacture of gypsum products, from which had come valuable aid in the preparation of a gypsum exhibit for the geology section. The educational director of the company stated in this regard :
"We are particularly glad to help because, for one thing, we realize that the educational service you are rendering the schools is something that benefits not only the boys and girls of today, but the employers and workmen of tomorrow. It is amazing to find how few of the men applying to the company for employment have the slightest conception of what its products consist. The children who study your economic cases will gain at least an elemental knowledge of the subject, to the extent that they will know what gypsum looks like, where it comes from, and something about the various articles of commerce made from it. That is incomparably more than the average workman knows about the subject."
SOME ITEMS FROM THE CATALOG
To give some idea of the ground which the traveling museum is already covering, here are the names of twentyfive exhibits taken at random from each of the three principal classifications :
BOTANICAL
Dye woods
Cork and its products
Flax (linen thread, damask, etc.)
Flour-making from wheat
Paper from wood
Vanilla plant and product
Rubber (various kinds)
Cacao and chocolate
Corn (by-products)
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