é 
484 NATURAL HISTORY MISCELLANY. 

dages of the genus Atrypa, by R. P. Whitfield. Professor Hall’s contri- 
butions to Paleontology include a compendious extract from his work on 
the eee Do ii, of the Canadian Geological Survey), extracts 
from Vol. 4 e Palæontology of New York, and observations on the 
Niagara ASERS of Wisconsin and Illinois. The extracts are principally 
tions trace the relation of the Niagara group, of New York, to the Guelph 
limestone of Canada, and the limestones of Racine and Le Claire in Wis- 
consin, which are said to be identical with a thin bed of limestone in 
Wayne county, New York, formerly referred to the Onondaga Salt Group. 
The lithographer has not, apparently, done full justice to Mr. Wh hitfield’s 
masterly drawings, but all the plates are good, and some deserve high 
praise. 

NATURAL HISTORY MISCELLANY. 

eet 
n 
bulbosa, and R. ficaria all have double forms) could scarcely result from 
cultivation, as they are too common to be ever a cultivated plant. Yet 
we rarely see any tendency in this direction in wild plants. The oniy ° 
I ever found double was a neste Virginiensis, in a shady wood on the 
sanickon, some fifteen years ago. It was EET to my garden, 
sa Goto the same season s a oie laborer. Has any 0 nae 
double flower been found ?—T. MEEHAN. 
Saxifraga Virginiensis was found full-double at Danvers, Mass., 
years ago, and it continues so from-year to year. It is well worthy ri 
florist’s attention. Incipient doubling is not uncommon ina considera 
number of wild flowers; but the process of doubling is srs acceler- 
ated under the conditions which attend cultivation. — A. GRA 

ZOOLOGY. 
T re 
` ol- 
A. McNiel, an cnthuslasti ardent naturalist and indefatigabi t 
cordially received, and aided by the officers of the Panama 





