270 MAKING AND BEAUTIFYING THE HOME 



fibers will show the effect seen in many of the school desks, where the 

 annual rings appear to form small elliptical markings. 



Study the top of your desk, the wainscoting, the floor, and any other 

 wood at hand to determine the plane at which it was cut. Study the 

 figures and compare with the specimens of wood just noted. Can you 

 observe any difference in the color of the wood ? 



Conclusion: What is the common method of cutting wood for trim? 

 Why? Does most dried wood show any difference between heart and 

 sap wood? What is this difference? 



A granite quarry. 



Stone as building material. Although not many single 

 houses are built of stone, yet in some parts of the coun- 

 try, where it can be obtained easily, stone makes an ex- 

 cellent building material. Many an old house in New Eng- 

 land was built in part, at least, from the bowlders and 

 loose stones which were found scattered around in the 

 vicinity. About eighty millions of dollars' worth of stone 

 is used in this country every year. Most of it is lime- 

 stone, sandstone, or granite. Limestone is found in many 

 parts of the United States, and while much of it is used, 

 as the Indiana limestone, for buildings, far more is used now 



