178 



The 34 species described above are, besides several kinds of 

 feldspar, the only mineral substances which have hitherto been 

 found on Narsarsuk in a quantity sufficiently large to allow of a 

 complete or approximately complete investigation. This number 

 must be regarded as very large considering the small area 

 within which they have been found. Besides these minerals 

 there are on Narsarsuk several others, which have, however, 

 been found in such small quantities that a determination has not 

 been possible. As has already been mentioned , all of the 

 minerals on Narsarsuk were either found lying loose on the 

 surface or obtained by quite superficial digging. The locality 

 has not as yet been worked for minerals to any extent worth 

 mentioning. It cannot, however, be doubted that deeper diggings 

 would result in rich finds, partly of minerals hitherto found 

 there only in small quantities and partly of altogether new 

 species. Few, if any, places are as yet known that equal the 

 Narsarsuk plateau in its richness and variety of minerals ; it is 

 to be hoped that, ere long, science will be enriched by further 



discoveries at this locality. 



In the previously published preliminary account of my visit 

 to Greenland M I gave, so far as was then possible, before a com- 

 plete investigation had been made, a list of the minerals col- 

 lected. As a matter of course , the minerals then unknown to 

 me could not be designated by definitive names, nor was it 

 possible to wholly avoid errors as to the question whether 

 certain substances were new or previously known minerals. 

 In order to correct such errors as well as to point out the 

 relation between the provisional designations and the descrip- 

 tions given above, I slate here what each mineral from Nar- 



1) This Journal Vol. 14, p. 221. 



