Acworth, Bernard,  1885-1963. <br/><br/>
Bird and butterfly mysteries :  realities of migration / 
by Bernard Acworth ; with an introduction by Brian Vesey-Fitzgerald. 
 - London :  Eyre & Spottiswoode,  1955. 
 - 303 p. :  ill., plates ;  22 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>(Hbk.)  10.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds.<br/>Butterflies.
<br/><br/><label>Dewey Class. No.: </label>598