Back Volume of the Scientific American

1849 ◽  
Vol 4 (21) ◽  
pp. 165-165
1981 ◽  
Vol 26 (6) ◽  
pp. 484-484
Author(s):  
Michael I. Posner

1991 ◽  
Vol 36 (4) ◽  
pp. 349-349
Author(s):  
No authorship indicated
Keyword(s):  

1925 ◽  
Vol 132 (3) ◽  
pp. 190-201
Author(s):  
Albert G. Ingalls
Keyword(s):  

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