54 



THE CARBONIFEROUS. 

 Fig. 9. — Markings oit Rocks. 



(a) Protichnites Carl mart  (nat. tze), Carboniferous, Nova Scotia. 

 (i,) /•. Acadicus, „ „ „ 



! I ,.';, I nil, -■(!), n n 



ahnites, different formfe (nat. size), „ „ 



1 Ized plant with reticulated cracks filled with mineral matter, simulating a reticulately 



veined leaf (nat. size); a, enlarged section of part of the same. Carboniferous, Nova Scotia. 



