Murray, Desmond <br/><br/>
Species Revalued   A Biological Study of Species as a Unit in the Economy of Nature, Shown from Plant and Insect Life 

 - London  Blackfriars Publications  1955 
 - 166p 
<br/><br/> includes index and biblioraphy 
<br/><br/>the historical aspect  the reign of law  natural selection  the fossil record  barriers to the divergence of species 
<br/><br/><label>ISBN: </label> 0 
<br/><br/><label>Dewey Class. No.: </label>N54.2  / M961