140 
LOUGH DAN. 
Per Cent. Atomic Quotients. Proportionals. 
Silex, 65:05 1-436 4:16 
Alumina, 17-72 0°345 1:00 
Magnesia, . Trace, . . . 0:000 
Lime, (OPAB eo nsierecnuhc vos | 
Potash, 5 52-3:420 7 0285 O88). Fates 
Soda, oe aE SE 7S 0-088 
Loss by ignition, 0°36 
99°53 
Sp. gr. =2°559. 
GLENMACANASS. 
Per Cent. Atomic Quotients. Proportionals. 
Silex, 64:19 WAN... GOS 
Alumina, se heT S39) 4. 0358 .. ..>>. 4.9500 
Mapnesiay: . oa) O34) |< 0:017 
Lime, 9 0:70 0:025 
Potash, ; . 11:39 0:242 eee ek ie 
SOdR ids 0) eink & M2590 0:095 
Loss by ignition, 0°58 
98°54 
Sp. gr. = 2553. 
GLENDALOUGH. 
Per Cent. Atomic Quotients. Proportionals. 
Silex, 63°60 1-404 3:83 
Alumina, 18:84 0°366 1:00 
Magnesia, 0-40 0:020 } 
Lime, . Trace, 0:000 ee 108 
Potash, 14:33 0:305 | : 
Soda, Ae 1-92 0-060 J 
Loss by ignition, 0°60 
99°69 
Sp. gr. = 2°453. 
