Science in progress / 
by H. D. Smyth ... (et al.) 
 - New Haven, Conn.:  Yale University Press,  1949. 
 - v. :   ill. ;   24 cm. 
<br/><br/> includes index  Sigma Xi National Lectureships (berbeza sedikit). Jilid 6 termasuk Silliman lectures, 1947. Mulai 19 termasuk RESA National Lectureships. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Collected works.<br/>Research.