EXPLANATION OF PLATE 17. 



Lamps of Eastern Siberia. 



Fig. 1. Outline, section, and front view of balanced soapstone lamp with lirirlge. 

 (Cat. No. 61222, U.S.N.M. Collected by E. W. Nelson.) 



Fig. 2. Outline and section showing method of installation of Chukchis lamp. From 

 the " Voyage of the Vega." 



