284 PRIMORDIAL #"AUNA AND POINT LEVI FOSSILS. 
ORDERS, sUB-onDERs{ 
in one circle, adhe- 
ring to the synsepa- 
lous calyx by their 
backs, and thus 
bound SOnETREE so 
4 as to imitate an in- 
(Dialypes f Several ferior fruit .......... PoMACEZR. 
eK nearly on the le- 
in one or more cir- vel of the flower SPIRZIDA. 
cles, usually numer- 
ous, almost always » | lining the tube 
a Ndistineties ees RosacEz. = J of the synsepa- 
J FS} lous calyx......... ROSIDZ. 
a 
oO covering a pro- 
a 
g jection of the 
5 (a drupe [flowers RAKES! S Jisesccense POTENTILLIDZ 
ry always regular] ... AMYGDALACEZ. 
Pe) 
| Solitary 5 a legume [flowers 
f | mostly irregular— 
always in our spe- 
| Gies']f, fo ee FABACER. 
| Apetalous {with the single carpel enclosed 
in the hardened calyx tube] ............... SANGUISORBACER. 
SELECTED ARTICLES AND TRANSLATIONS. 
ON THE PRIMORDIAL FAUNA AND POINT LEVI 
; FOSSILS. 
BY JAMES HALL. 
[In the January number of the Journal (page 40 of this volume) we inserted 
an interesting communication, on “ The Fauna of the Quebee group of Rocks, and 
the Primordial Zone of Canada,” addressed by the Director of our Geological 
Survey, Sir Witt1am Logan, to M. Barranpe. We now give some additional 
remarks on this subject (extracted from the last number of the American Journal 
of Science and Arts), by Professor Hall.* The age of these strata, it will be seen, 
is still considered by Professor Hall to be an unsettled point. His analysis 
and stamens, and still more Pomacez, in which the calyx adheres on the backs of the single 
circle of carpels, and binds them together, the petals and stamens being in the same position 
as in Rosa, might appear to be Epigynose. Sanguisorbacez, with the solitary carpel enclosed 
in the hardened synsepalous calyx, greatly resemble such Ficoidals as Scleranthus. Many 
Fabaceze would be easily taken to be Hypogynous. Yet with a knowledge of the sources of 
difficulty, and with the clear definition of the Orders, the careful student will soon obtain 
satisfaction. 
® “Letter from James Hall, Paleontologist of New York, to the Editors of the American 
Journal of Science and Arts.’ Dated January 28rd, and published in the March number 
of that Journal, 
