Possible New Coal Plants i/i Coal. — Gresley. 203 
brite filling chambered cells in rods; fig. 13 possesses a row of elon- 
gated globular masses of pale (?) ambrite or white material; fig. 6 
shows a ruptured rod with its fibrous contents crushed vertically. 
Hors. "Pittsburg" and "Redstone" coalbeds of bituminous coal. 
Loc. Scott-Haven, Pennsylvania, U. S. A. Mag. about 25 times. 
Figs. 15 and 16. Transverse section of rods as above; fig. 15, exhibit- 
ing (?) ambrite-filled chambers or channels; fig. 16, the fibrous con- 
tents, as in fig. 6. 
Fig. 17. Oblique to longitudinal section, showing peripheral struc- 
ture ep, merging inwards into rods r', of various structures, separated 
by interrodular cellular material c. 
Hor. "Mammoth" seam of anthracite. 
Loc. Lehigh region. Luzerne Co., Pa., U. S. A. Magnified 30 
diam. 
Fig. 18. Transverse section of rods and interrodular material, r' 
and c fig. 17. Lehigh Anthracite, Pa. Magnified 30 diam. 
Fig. 19. Oblique section of rod-plant terminal belonging to speci- 
men, fig. 25. ep. is the peripheral material, and r' the outer zone of 
rods. Magnified 15 diam. 
Fig. 20. Transverse section (restored) of the rod-plant, showing- 
central cellular area c'; inner rod zone r"; obscure portion s; outer 
series of rods r': more open tissue of coating ep'; and very dense 
exterior ep. 
Fig. 21. Section of a portion of the peripheral tissure ep, and its 
accompanying zone of rods r', displaying rupture of the former, in 
touch (?) with which is a sprout — or bud-like form c or (?) a seed- 
vessel upon the exterior. 
Hor. "Mammoth" seam (of anthracite). 
Loc. Luzerne Co., Pa., U. S. A. 
Magnified 15 diam. 
Fig. 22. Oblique section of portion of a rod-plant, showing rup- 
ture in the rind, and a .group of (?) spores or (?) macro.spores within 
the specimen. In Lehigh anthracite. Pa. 
Fig. 23. Longitudinal section of part of the rod-plant, showing 
some of the rods r' series, of figs. 17 and 20, extending from peripheral 
zone through the cells (c', fig. 17) on to same zone. 
Hor. (?) "Mammoth" seam of anthracite. 
Loc. Shamokin, Carbon Co., Pa., U. S. A. 
Magnified 4 diam. 
Fig. 24. Oblique longitudinal section of a "rod-plant." a. thrust 
into by some other plant, b, so that some of the rods, etc.. have been 
ploughed up and forced outwards into the groundmass. The rind has 
also been ruptured in other places. 
Horizon. (?) The "Mammoth" seam of anthracite. 
Loc. Lehigh, Pa. 
Fig. 25. Longitudinal section of a supposed entire individual rod- 
plant, showing peripheral zone ep, ep'; outer rod-zone r'; obscure 
region s; inner rod-zone r"; and central cellular part c'. 
