Rohr, René R. J., <br/><br/>
Sundials :  history, theory, and practice / 
René R.J. Rohr ; with a foreword by Henri Michel ; translated by Gabriel Godin. 
 - viii, 142 pages :  illustrations ;  21 x 29 cm 
<br/><br/> Originally published: Toronto : University of Toronto Press, 1970. 
<br/><br/>Includes bibliographical references (page 134) and index. 
<br/><br/>History of the sundial -- Some gnomonic cosmography -- Classical sundials -- Inclined dials -- Solar calendars -- Analemmatic dials -- Moon dials -- Elevation dials, azimuth dials, direction dials, and others -- Remarkable dials, past and present -- Inscriptions on sundials. 
<br/><br/> Chronicles the history of sundials, discussing the different varieties, the mathematical formulas required to build one, and the basic principles of cosmography. 
<br/><br/><label>ISBN: </label>0486291391 9780486291390 
<br/><br/><label>LCCN: </label>95045661  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sundials.<br/>Sundials.
<br/><br/><label>Subjects--Index Terms: </label>USA Michel, Henri Making General