Mayall, R. Newton <br/><br/>
Sundials, how to know, use, and make them / 
by R. Newton Mayall and Margaret W. Mayall. 
 - 2nd ed. 
 - Cambridge, Mass. :  Sky Pub. Corp.,  [1973]. 
 - xvi, 250 p. ;  ill. ;  21 cm. 
<br/><br/> Includes index. 
<br/><br/>The development of the sundail--Why the sundail tells time--How to design and make a dial--Parts of dial you should know--Sundail classification. 
<br/><br/><label>ISBN: </label>0933346603 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sundials.