Jean, Frank Covert,  1880- <br/><br/>
Man and his biological world,  by Frank Covert Jean, Ezra Clarence Harrah and Fred Louis Herman... 
with the editorial collaboration of Samuel Ralph Powers... 
 - Boston  New York [etc.]  Ginn and company  [c1944] 
 - viii, 630, [1] p.  illus., diagrs.  23 cm. 
<br/><br/> Revised edition of v. 2 of the authors' An introductory course in science for colleges, published under the title: Man and the nature of his biological world, 1934. 
<br/><br/>"References" at end of each chapter. 
<br/><br/>Life became associated with protoplasm, which requires a constant supply of food  // Living organisms must provide for the perpetuation of their own kind // Living things must adjust themselves to their environments // Science has made great discoveries relative to the nature and control of disease // Synthesis and decomposition form a cyle in nature // The adaptations of plants and animals have been seriously disturbed by man // Living organisms have evolved in response to changing environment // Mendel discovered genetic principles which make possible the improvement of all living species // Man's cultural development moved slowly at the outset but has been greatly accelerated by science and invention // Glossary // Index // 
<br/><br/><label>LCCN: </label>44006583  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology.
<br/><br/><label>LC Class. No.: </label>QH308  / .J4 1944 
<br/><br/><label>Dewey Class. No.: </label>571 JEA