112 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.49. 



search, as it is quite inconspicuous and until once seen difficult of 

 recognition. It is of interest to note that thus far its presence does 

 not seem to be characteristic of any particular class of stones, the 

 Allegan being a chondritic tuff (Ceo), Busti standing in a class almost 

 by itself (Bu), Bishop ville an almost purely pyroxenic stone (Chi), 

 Hvittis achrystalhne "kugelchen" chrondite (Cck), Indarch a carbo- 

 naceous chrondite (Kc), and St. Mark's a chrystalhne chondrite (Ck). 



