345 



Filicales (chiefly Pteridospermae) . 

 Alethopteris lonchitica Sternberg. 

 Caiilopteris {Psaroniiis). 

 Cyclopteris. 



Megaphyton (Psaronius) humile Dawson. 

 M. magnifiami Dawson. 

 Pecopteris lonchitica Dawson. 

 Sphenopteris latifolia Brongniart. 

 Seeds of Pteridospermae? 



Trignoncarpum avellanum Dawson. 



T. intermedium Dawson. 



T. minum Dawson. 



T. sigillariae Dawsom. 

 Cordaitales. 



Araucarites {Dadoxylon) gracilis Dawson. 



Cordaites borassifolius Sternberg. 



Dadoxylon {Araucarioxylon) annulatum Dawson. 



D. materianum Dawson. 



Pith casts of Cordaites. 



Sternhergia artis Dawson. 

 Seeds of Cordaitales. 



Rhahdocarpus Goeppert and Bergeron. 

 Fertile stems of Cordaitales? 



Ajttholites Brongniart. 



Cardiocarpum fluitans Dawson. 



INDUSTRIAL NOTES. 



The main coal seams were worked at the Joggins as early 

 as 1826, by shaft and horse-gins, but previous to 1854 

 the total production was only 7,700 Newcastle chaldrons 

 (a chaldron = 72 bushels). 



The Joggins mine, at present, is owned and operated by 

 the Maritime Coal Railway and Power Company, Ltd. 

 The seam in the Joggins mine is 3 feet 6 inches (i-o6m.) 

 in thickness. The slopes pitch about 17° at an angle 

 slightly less than that of the seam, and at present are 

 3,600 feet (1,096 m. ) from the surface to the face of 

 sinking. The total output for 191 1 was 149,670 tons. 

 In 1912 the output was 600 long tons per day. 



The same company owns and operates in the same field 

 the Minudie mine, Black Diamond mine. Maple Leaf and 

 Chignecto mines, which together produced 71,315 tons 



