The Spring and Summer of 1894. 



437 



ice last autumn (October) ; but the specimens I took 

 to-day consist for the most part of mineral dust 

 mingled with diatoms and other ingredients of organic 



orgn. 



* 



From a\ BLESSING GOES OFF IN SEARCH OF ALGM. {Photograph. 



" Blessing collected several specimens on the upper 

 surface of the ice earlier in the summer, and came to 

 the same conclusions. I must look farther into this, in 



* The same kind of dust that I found on the ice on the east coast of 

 Greenland, which is mentioned in the Introduction to this book, p. 33. 



