SMITHSONIAN 



CONTRIBUTIONS TO KNOWLEDGE. 



VOL. XXVIII. 



VALUABLE ME.MBEH , )F K,.,K,-V WHO. BV HIH Oa^VATKNO, UKSKAHC,,,*, AND EXPEKLMENT*, PKOCUKE. 

 KXOWLElKiE Fill! .MEX. -/S.M1THSON. 



CITY OF WASHINGTON: 



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