no 



Henry Glacier. In a bloch of brown basalt from the 

 medial moraine numerous cavities were seen, containing various 

 zeolites, such as chabazite, levynite and thomsonite. This last- 

 mentioned mineral was found partly as lining in a cavity in 

 which no other zeolites were present and partly as a globular 

 mass on the levynite crystals. In both places exceedingly small 

 crystals were found on the surface, projecting freely and flat- 

 tened parallel to a(lOO}j any more accurate determination of 

 the faces was impossible. The colour was greyish or brown. 



Henry Land. 

 1) From the east side of Mount Henry was obtained a single 

 fragment of grey basalt, the cavities of which are almost 



Fig. 2. Thomsonite; 

 Henry Land. 



Fig. 



3. Thomsonite; 

 Henry Land. 



entirely filled with snow-white columnar thomsonite. The 

 crystals generally radiate from a single point on the side 

 of the cavity. A few of the cavities contain crystals in the 

 form of very thin rectangular plates parallel with a{lÜO}. 

 The breadth of the crystals is about 2™™. The commonest 

 form, represented in fig. 2, consists of a{lOO}, ш{110} and 

 e{80l}. A few of the crystals show narrow faces of /(601), 

 r{lOl}, c[00l} and b[OiO]. The combination of all the 



