Scientific Intelligence. 263 
Lake Santa Maria, Chihuahua; April, June. ( Wright, No. 1707.) 
Stems nearly a foot high. Leaves often alternate, twice the size 
of those of the preceding species, whitened, at least when young, 
with an apparently farinose fine pubescence, somewhat as in a 
/enopodiu lowers pretty numerous in terminal and alar, 
cymulose clusters. Bractlets minute and solitary, or none. T 
‘panded perigonium barely two lines in length. Fruit nearly 
asin §, diffusus, but slightly obovate in outline. Embryo as in 
phys and Acleisanthes. ; 
(To be continued.) 
SCIENTIFIC INTELLIGENCE. 
I. CorrESPONDENCE, 
Correspondence of M. J. Nicklés, dated Paris, January 9, 1853. 
erties: to the rotation of the earth. 
te followed the first announce- 
the subject and had arrived at inter- 
the results. Leaving unsettled 
fae of justice to each o 
.~ Physicists, we give a descrip- 
establishes 
ae by him before he knew of 
to 5 t’, (fig. 1,) is a torus 
NZe, poised on its axis by 
