80 BULLETIN 94, UNITED STATES NATIONAL MUSEUM. 



Approximation of the relative quantities of the diiferent constitu- 

 ents: 



Per cent. 



Nickel-iron 2. 59 



Troilite 4. 43 



Schreibersite ,08 



Chromite . 80 



Olivine 40. 48 



Pyroxenes 51. 62 



100. 00 



Reference.— Q. P. Merrill, Proc U. S. Nat. Mus., vol. 32, 1U07, 

 p. 79. 



HESSLE, NEAR UPSALA, SWEDEN, Nos. 27, 482. 



Stone, Cc. Two pieces, one a fragment showing crust and weigh- 

 ing 40 grams, and the second a small completely incrusted individual 

 weighing 11 grams, from a shower comprising many individuals 

 varying in weight from a fraction of a gram to a kilogram, which fell 

 on January 1, 18G9. The fall is of interest, being the first recorded 

 fall in Sweden, and, further, (1) from the low velocity with which 

 they struck the earth, Nordenskiold stating that though the stones 

 were so friable as to be readily broken if thrown against a hard sur- 

 face, they were not broken or even scarred by the impact of the fall ; 

 and (2) from an associated carbonaceous matter which seemed to 

 partake of the nature of a hydrocarbon. 



Chemical analyses by the various workers are somewhat variable. 

 In column I below are given results obtained by Nordenskiold and in 

 column II those of Linstrom. 



Constituents. 



Silica(Si02) 



Alumina (AI2O3) 



Ferrous oxide (FoO) 



Magnesia (MgO) 



Lime(CaO) 



Manganous oxide (MnO) . . . 



SodaCNaoO) 



Iron(Fe) 



Nickel (Ni) 



Cobalt(Co) 



Sulphur (S) ^... 



Phosphorus (F) 



Copper and tin (Cu and Sn). 

 Chromic oxide (CrjOa) 



Per cent. 

 3G.91 



1. .'55 

 13. 13 

 25.06 



2.0s 



1.57 



1(5. 36 



2.16 



Trace. 



.18 



lYaee. 



.02 



99.32 



Per cent. 



36.83 



2.38 



10.85 



23.21 



1.80 



.42 



.94 



20.08 



2.15 



.02 



1.88 



.15 



.02 



.07 



100.80 



The mineral composition presents, aside from the hydrocarbon 

 compound, no apparent departure from the ordinary oli vine-pyroxene 

 type. 



