470 Scientific Inielligence. 
possible the existence of the large oceanic Algz to which Mr. 
Carruthers likens the plant—these are all ioetisielin requiring 
us to suppose that the plant grew on the lan urther, the 
— are preserved in sandstone, retaining their rotundity of 
for n when prostrate; and are thoroughly iemecers with 
bllicn exoept the thin coa aly bark. Not only are Alge incapable 
of occurring in this way, but even the less dense and durable 
Ase. as Sigillarize and Lepidodendra are never found thus pre- 
ved. Only 
very beds in which these occur, ses acoso tree ferns and 
Psilophyton, are flattened into mere coaly films. This absolutely 
proves to any one having experience in the mode of occurrence of 
fossil plants, that here we have to deal with a strong and dura- 
ble woody plant 
The paper Saeciok _ the microscopic structure of the fossil, 
= its probable affinitie 
. Fossil Vertebrates of Cretaceous and Tertiary affinities in 
ae: same beds on the Saskatchewan.—Prot. Cope has examined 
fossils collected by G. M. Dawson in beds of the “ Fort Union 
Group,” from a horizon 100 to 200 feet above the beds of Creta- 
ceous No. 5. They include among Dinosaurs, Cionidon stenopsis 
age! {about the size of C. uretatus Cope) and a species related 
to Hudrosaurus. ut with these species of Cretaceous pores! 
there are two tortoises of' the genus Plastomenus Cope (P. es- 
cens aud P. eostatus Cope), a genus of the eevee and sls of 
gars, closely resembling those of the genus Clastes of the Lower ° 
Eocene of the Rocky Mountains. “The list of eobelen* says ea 
“short as it is, indicates the future se i of a complete transi- 
tion from retaceous to Eocene life clearly than mw oe 
obtained in the a vs See Rocky Moestale: region).—Proe. A 
Nat. Sci. Philad., yh 
4. Systemutic Sisley of Ver tebrata of the Eocene of New 
Mexico, collected in 1874, EK. D. Corr, A.M., Paleontologist. 38 
pp. 8vo. Washington, 1875. Ge eographical explorations and sur- 
veys under asset Wheeler, - the Engineer De ph matinee, ia 
for it appears to since evidence as to the chicos through which 
the gangue rock of the platinum had p: 
