537 



No. 1. — 1.887 gave 0.163 of a reddish ash containing 

 much iron. 



0,489 grammes gave: 



Water 0.262 



Carbonic acid 1.050 



No. 2. — 3.393 grammes gave of slightly reddish ashes 

 0.550. 



0.648 gramme gave 



Water 0.429 



Carbonic acid 1.220 



These lignites consequently consisted of 



No. 1. No. 2. 



Carbon 58.56 51.36 



Hydrogen 5.95 7.35 



Oxygen 26.85 25.08 



Ashes 8.64 16.21 



100.00 100.00 

 The results of the practical analyses were as follows : 



No. 1. No. 2. 



Volatile matter .... 57.70 53.70 



Pure charcoal 33.66 30.09 



Ashes 8.64 16.21 



By ignition with litharge, No. 1 gave 19^ parts of lead, 

 and No. 2 gave 16.7 parts. They hence were equivalent in 

 100 parts. 



No. J . — To 58 parts of pure carbon. 

 No. 2 — „ 50 



VI. TURF. 



The specimens of turf were selected from Cappoge, in 

 Kildare, and Kilbeggan, in Westmeath, on different sides 

 of the great Bog of Allen, and from Kilbaha, in Clare. 

 When ignited, turf gives off inflammable gas, and leaves a 

 light, easily combustible charcoal. 



The elementary analyses were as follows : 



KILBEGGAN TURF. 



.383 grammes gave : 



