14 THE NATURE-STCDY REVIEIV [sm-jan., ,909 



brow, cannot be overestimated. The rich boy wo"ks along with the poor 

 boy, each endeavoring to produce something which will express tangible 

 results. Manual training work to be valuable must be strenuous. Boys 

 must be made to plane and saw and sweat. They must produce shavings 

 that have the artistic curl of the craftsman, not meaningless chips. Shop- 

 Avork should give ability to plan and execute work according to good 

 technique." 



The school is fortunate in possessing a garden containing an 

 acre of land. Here the elements of agriculture are taught. All 

 of the more common plants of commerce are produced. Among 

 them are wheat, rye, barley, oats, buckwheat, rice, millet, 

 sorghum, broom corn, field corn, sweet corn, cotton, hemp, flax, 

 tobacco, sweet potatoes, peanuts, castor beans, sugar beets, 

 hops, and some forage plants\ 



The growth of these plants is a revelation and an inspiration 

 to the children. The products are used to illustrate lessons in 

 geography, to furnish materials for drawing classes, and to 

 decorate the class-rooms. 



THE PHYSICS OF INDUSTRY 



ByC. R.MANN 

 The University of Chicago 



The problem of teaching physics to pupils of the grammar 

 schools has been attacked from se\'eral points of view. In some 

 of our large cities, for example, there are given to the seventh 

 and eighth grades courses resembling in general outline and 

 methods of treatment those called physics in the high schools, — - 

 a sort of low potency high-school course, as it were, just as the 

 present high-school course is a "diluted and highly peptonized" 

 college course. 



DuriiTg the past year an experiment was tried in the Uni- 

 versity of Chicago Elementary School for the purpose of finding 

 out whether a course in physical science covtld not with ad- 

 vantage be built up from the point of view of the industries 

 rather than from that of the college. 



The general topic chosen was heat. The class, consisting of 

 four sections of about sixteen members each, both boys and 

 girls, were occupied for several periods by informal discussion 

 of their general information about heat, what it does for them, 

 and what they wcnild like to know about it. As a result of this 



'See article by Professor Farnham in this magazine for March 1907, vol. 3, 76-85. 



