686 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. XXxTIv. 
The granular form, like the crystals, is nonmagnetic and under 
the microscope is seen to be impregnated to a certain extent with 
olivine. Color brownish-black with a resinous luster. 
Composition : 
Oi es @ Flames Secs ea ee erik at aah eee (8b 5 ONL 
Al:O3__ = Enis Bey LAS OSes aR Nap a ee ROO) 
HeO=s 2% Se ant Ss weet else cule cranes Saree ere URS 
MgO ___ E ede SS eet Oe 
NSB Op yagente ee eed ea ek ee a Sees Us pate ee 1.38 
Comparing these two analyses it is interesting to note that notwith- 
standing the presence in the granular form of a silicate rich in mag- 
uesia and ferrous iron, the content for both of these oxides is less 
than that of the crystals which are free from-such a silicate. 
THE ADMIRE METEORITE. 
The first lot of chromite separated from this pallasite was as small 
nonmagnetic, jet-black grains having a brilliant luster. No crystals 
were noticed, although under the microscope occasional grains would 
show planes which may have been either crystal or anhedral faces. 
The chromite as analyzed gave: 
CO © Pyne oa es ere en ree oe ee eee ese ae 2 65. 49 
FeO i SSS SE ra 0 ec eae aan era 33. 00 
Mi SO is otis SPS De AR ae eA eas nae Me eee hand ()Ee4() 
Nel @ amcor epic yi Meee ata Sto desea Fe eee Se aie oo eae Sakis a ee 0. 50 
A characteristic of the Admire is the interesting association of the 
metallic alloys which may briefly be described as consisting of a broad 
white outer band of nickeliferous iron surrounding a dark gray area 
made up of a more or less spongy iron containing iron sulphide, phos- 
phide, chloride, ete. Acid treatment of these metallic portions, which 
are practically free from silicates, yielded very minute dust-like par- 
ticles in relative abundance. These particles were magnetic; had a 
bluish-brown color with a dull luster. An analysis gave: 
Cr203_ BEE pe Ss ci A Sage SS fel a ga oe age 56. 49 
Hes @ sae ekse ees sbeatieg SL Ses _ 10. 20 
FeO x a Wa trea ch ee AS Oy 
Al:O3 is ae aatae Pema deen A Trace. 
vi ea 6) Petia Se ear pe yee iene. arene Fh SOE Haka Ne et Trace 
While this analysis in itself is poor, a comparison with the one pre- 
ceding makes it evident that there are two different members of the 
chromite group present in this meteorite and which may have had 
different periods and conditions of formation. 
THE MARJALAHTI METEORITE. 
Through the kindness of the late H. A. Ward several fragments of 
. this pallasite were secured for use in making separations. In these 
fragments chromite occurred sparingly in crystals of quite a large 
