SIR W. CROOKES ON THE PHOTOGRAPHIC SPECTRA OF METEORITES. 
42 1 
1 calcium, 18 chromium, 2 magnesium, 3 manganese, 27 nickel, 2 potassium, 
6 sodium. 
Chateau-Renard (from Trigueres, Loiret, France). 
The photographed spectrum of this aerolite extends from X 3230 to X 5896, 
and includes in addition to the lines of iron 2 calcium, 28 chromium, 2 
magnesium, 3 manganese, 44 nickel, 2 potassium, 6 sodium. 
Crumlin (from County Antrim, Ireland). 
The quantity of material in this case was small, the lines in the photo¬ 
graphed spectrum extend from X 2967 to X 5896, and includes in addition to 
the lines of iron 2 aluminium, 31 chromium, 2 magnesium, 3 manganese, 38 
nickel, 6 sodium. 
Dandapur (from Goruckpur, North-West Provinces, India). 
The photographed spectrum of this aerolite commences at X 3002 and 
extends to X 5896, and includes in addition to the lines of iron 1 calcium, 24 
chromium, 2 magnesium, 3 manganese, 47 nickel, 2 potassium, 4 sodium. 
Daniel’s Kuil (from Griqualand East, South Africa). 
The photographed spectrum of this aerolite commences at X 2788 and ends 
at X 6634, and includes in addition to the lines of iron 1 aluminium, 30 
chromium, 3 magnesium, 3 manganese, 49 nickel, 6 sodium. 
Dhurmsala (from Kangra, Punjab, India). 
The whole of the material available, 5 grm., was used and the photographed 
spectrum extended from X 2795 to X 6643, and includes in addition to the lines 
of iron 2 calcium, 28 chromium, 5 magnesium, 3 manganese, 38 nickel, 2 
potassium, 6 sodium. 
Durala (from Kurnal, Punjab, India). 
The photographed spectrum of this aerolite extends from X 2975 to X 5896, 
and includes in addition to the lines of iron 2 calcium, 19 chromium, 4 
magnesium, 3 manganese, 37 nickel, 2 potassium, 4 sodium. 
Eli Elwah (Hay, Waradgery County, New South Wales), 
The photographed spectrum extends from X 3246 to X 4957, and includes in 
addition to the lines of iron 7 chromium, 2 magnesium, 3 manganese, 27 nickel, 
2 sodium. 
El Nakhla el Baharia (from Alexandria, Egypt). 
This very soft stone when mixed with silver powder and compressed into a 
block proved to be very fusible and the arc could only be maintained for a few 
seconds, three short exposures only were obtained, and these were not sufficient 
to bring out the nickel lines. 
The photographed spectrum extends from X 3466 to X 5896, and includes in 
3 P 2 
