132 Scientific Intelligence. 
Siliceous matter,- - = - - 23°38 21-70 2718 = 2108 © 
Peroxyd ofiron,- + - + 4196 5632 47°32 02097 
Peroxyd of manganese, - - 26°77 611 1625 245 
Percentage of metallic iron, - 2938 3948 38814 401877 
= _ manganese, 1608 10°25 10°34 155 
These ores contained a little phosphoric acid. i 
The following are the results of the analyses of three samples of this 
pig; the titanium being determined as in the other analysis of pig 
ven :— 
I Il. 
Grapite, 2. = es +e we 3010 2615 
Combined carbon, - - . . 1 1:02 
Silicium, - “ - - - 2-590 2°550 8:325 
sith A Sync fae ia OOD 86-880 84256 
Manganese, - - - - -  5°850 6 370 8-087 
Nickel and Cobalt, - - - 110 F 
Copper with a little antimony, - 060 "045 “064 
Phosphorus, - = - disse Ge 147 154 201 
ee ee eee 026 026 ‘0iT 
Titanium, - - i é é 790 1°150 1629 
joe: ren 
Samples 1. and 1. were made with a mixture of 4 Cornish, ¢ 
bog-ore, 4 hematite; and sample mt, } Irish bog-ore, $ Cornish ore 
The Irish bog-ore contained 7 to 9 per cent of manganese. 
These samples of pig were numbers 1 and 2, with here 
