6 COiS'TENTS. 



Pakt II. — The Jurassic flora — Continued. 



Page. 



Jurassic cycads from Wyoming -, yq 



Internal structure of Cycadella i qo 



On the foliage of the Jurassic cycads of the genus Cycadelh, by G. R. Wieland 198 



Jurassic cycads from the Black Hills _ 9^0 



Field notes, by G. R. Wieland 20" 



Note on Fremont's collection 9^- 



Part III. The Cretaceous flora .^^.q 



Lower Cretaceous flora of Queen Charlotte Islands 999 



Flora of the Shasta formation 9, , 



Notes on some fossil plants from the Shasta group of California and Oregon, by William M. 



Fontaine 99, 



Cycadean trunks from the Shasta formation 



Flora of the Kootanie formation. 



273 



- 277 



Notes on some Lower Cretaceous (Kootanie) plants from Montana, by William M. Fontaine. 284 



Flora of the Lakota formation of the Black Hills 3I 5 



Notes on the stratigraphy and paleontology of the Black Hills rim, by G. R. Wieland 317 



Flora of the Trinity formation. 09^ 



Flora of the Older Potomac fonnation 3,9 



Historical reriew _ „ ,r, 



The Maryland cycads ^, 



Stratigraphical position and general nature of the Maryland cycads, by Arthur Bibbins . 411 



Description of the species , , /. 



Recent collections of fossil plants from the Older Potomac of Virginia and Maryland 474 



Report on various collections of fossil plants from the Older Potomac of Virginia and Mary- 

 land, by William M. Fontaine. a^r 



Introduction ,_„ 



- — 476 



Localities in Virginia _ _ ■ ^-.o 



Fossil plants from the James River. ^yg 



Fossil plants from Alum Rock jon 



Fossil plants from the seventy-second milepost 450 



Fossil plants from near the seventy-second milepost 451 



Fossil plants from the bank near Brooke 409 



Fossil plants from Cockpit Point 4t;9 



Fossil plants from near Woodbridge 405 



Fossil plants from near Lorton station 455 



Fossil plants from the Colchester road 457 



Fossil plants from White House Bluff and Mount Vernon (Brooke beds) 487 



Fossil plants from Mount Vernon 4gQ 



Fossil plants from Hell Hole gQ4 



Fossil plants from mouth of Hell Hole _ . . 50s 



Fossil plants from Chinkapin Hollow go9 



Localities in the District of Columbia ; 5jg 



Fossil plants from Sixteenth street gig 



