PROCEEDINGS OF UNITED STATES NATIONAL MLSEUM. [1886. 



EXPLANATION OF PLATE XVIL 

 le diocese of Erwahlen, .Courland, Ru 

 (Copied from " C. Grewingk, Die Steinchiffe von Musching," &«.) 



Boat-shaped groups in the diocese of Erwahlen, .Courland, Russia. 

 Described on page 447. 



