On Carloniferom Cod Seams. By Eclimrd WetJiered. 413 



Within the first tu-o inches from the top. Largely made up 

 of macrospores and microspores, fig. 9, very similar to those 

 detected in the " Shallow Seam." Well-preserved scalariform tissue 

 detected. A horizontal section of the coal is represented in fig. 8, 

 magnified 12J diameters. 



Three inches from the top. Spores less numerous, some of the 

 macrospores have caudate appendages attached to the walls. The 

 mass largely made up of hydrocarbon and decomposed vegetable 

 tissue. 



Four inches from the top. Spores again numerous, but do not 

 constitute the whole mas^. The predominating macrospores are 

 smaller than those above, and are apparently not the same species, 

 figs. 11, 12, 15, X 50 diameters. In fig. 12 microspores are also 

 shown X 50 diameters, and in fig. 16 one is represented x 262 

 diameters. A horizontal section of the coal is shown by fig. 10, 

 X 12^ diameters, which illustrates the difference in the coal com- 

 pared with the upper portion, fig. 8. Some of the macrospores 

 show caudate appendages and though numerous only fragmentary 

 specimens could be found. 



Betiveen four and five inches from the top. Spores less 

 numerous ; vegetable tissue occurs generally carbonized. Hydro- 

 carbon contributes largely to the composition of the whole mass. 



Betiveen six and seven inches from the top. Spores form but 

 a small portion of the coal ; it is mainly made up of tissue and 

 hydrocarbon. A piece of carbonized scalariform tissue was met 

 with, the first time I have noticed it in that state of preservation. 



Eight inches from the top. Spores scarce, though they were 

 searched for by horizontal and transverse sections. The coal was 

 mainly made up of tissue in various stages of decomposition. Some 

 of it appeared to yield a resinous material. The structure here 

 exhibited is the first I have noticed of the kind. 



Nine inches from the top. A few spores noticed. The coal 

 practically made up of tissue and hydrocarbon, the passage of the 

 former into the latter clearly demonstrated. The resinous-looking 

 material noticed above again present but disappearing. 



Ten inches from the top. Spores continue scarce; the coal 

 mainly made up of tissue and hydrocarbon, fig. 13, x 12^ diameters. 

 In fig. 14 a portion of carbonized and partially decomposed cellular 

 tissue is magnified 50 diameters. 



1 am unable to entirely endorse Professor Huxley's statements ; 

 undoubtedly the first three inches is very largely made up of 

 macrospores and microspores, and the same may be said of the 

 layer at four inches from the top, though they are mostly of a 

 different species to those above, but below that point spores form 

 but a small proportion of the whole mineral. 



The next coal to which I shall draw attention is the " Splint 



