372 THE CANADIAN NATURALIST. [Dec. 



mustard seeds (Sporangites glabra of my papers) in the rocks of 

 Horton Bluff and Lower Horton, Nova Scotia. They are some- 

 times globular, and filled with pyrites of a granular texture which 

 perhaps represents the original cellular structure or the micro- 

 spores. In other cases they are flattened and constitute thin car- 

 bonaceous layers. They are almost without doubt the spore- 

 cases of Lepldodendron corrugatiim, which abounds in the same 

 beds, and constitutes in one place a forest of erect stumps. I de- 

 scribed them in a paper on the Lower Carboniferous of Nova 

 Scotia in the Proceedings of the Geological Society of London for 

 1858, though not then aware of their true nature, which was, 

 however, recognized by Dr. Hooker in some specimens which I 

 had sent to London. 



In my paper on the conditions of the accumulation of Coal, 

 (Proceedings of Geological Society of London, May, 18GG), I pro- 

 posed the name Sporangites for these bodies, in consequence of 

 the difficulty of referring them certainly to any generic forms. 

 Carruthers had in Oct. 1865, described a cone containing round- 

 ed spore-cases of not dissimilar type, under the name Flcmingltes. 

 In the paper above referred to, I stated that out of eighty one 

 coals of the South Joggins Section examined by me, I recognized 

 these bodies and other fruits or Sporangia, in only sixteen ; and 

 of these only four had the rounded Lycopodiaceous spore-cases 

 similar to those of Flemingites. These are the following: — 



(1.) Coal group 12, of Division IV^, has a bed of coal one foot 

 thick, of which some layers are almost wholly composed of Sporan- 

 qites papiUata. 



(2.) Coal group 13, Div. lY, has in some layers great quanti- 

 ties of Sporangites glabra, especially in the shaly parts of the 



coal. 



(3.) In Coal group 14, Div. IV, a shaly parting contains great 

 numbers of similar Sporangites. 



(+.) In Coal group 15 a, Div. IV, the shaly roof abounds in 

 sporangites, but I did not observe them in the coal itself. 



In addition to these cases, all of which curiously enough occur 

 in one part of the section, and among the smaller coals, I have 

 noted the occurence of clear amber spots in several of the compact 

 coals bnt I did not regard these as certainly organic, suspecting 

 them to be rather concretionary or segragative structures. 



The great coal beds of Pictou are, in so far as my observation 

 has extended, remarkably free from indications of spore-case?, and 



