876 Scientific Intelligence. 
The shape of the leaves, — a contiguity or distance of the male 
and female inflorescence, ot furnish very reliable diagnostics. 
Typha oe Lin., A somanbek the United States to the Pacific, 
and into Mexi Axis of male inflorescence hairy; pollen grains 
in 4’s; feasiits Gowns without bracts; stigma lanceolatespatalat, 
much longer than the perigonial hairs ; leaves flattish 
Typha sce Ae Lin., in the northern parts of the United 
States, southward only known in Louisiana. Axis of male inflor- 
escence hairy; hairs linear; pollen vay ro de female flowers 
f the 
ward ; perigon ial hair xed female flowers slightly clavate (not 
that 
snifotia H. B K, belon 
A plate elucidates the differences of structure of the seed coats. 
n alphabetical index enumerates the names and a baneal ergs and 
refers them to their proper places. 
Ii Astronomy. 
1. Cordoba Observatory.—The following are extracts from the 
recent official Report of the Director, Dr. B. A. Gou 
The Observ: vatory is situated on a height o or parranca, lying to 
the southeast of the city of Cordoba, at a distance of eight squares 
from the principal Plaza, and not far from the gardens of the Na- 
tional Exposition. 
The ground plan of the edifice consists of a square, divided i. 
four rooms of 5°8™ a side each; and forming wings to the ©. a 
two more rooms of 3°6™ "wide sdons 3° pg destin i 
while in tha north and south direction two cnale towers of 4 
meters in diameter serve as prolongations to the mas 
towers have revolving cupolas, and the whole of the edifice =i 
& Cross terminated at its four eg eH by as rage fg towers. ade 
by a 
of 24°3" from N. toS. The i of the tice towers is 6" on 
lie toward the E. and for the towers to the NS & Ew el 
m the United States in June of the last year, with the excep 
tion of the masonry, which it was necessary to have con ct : 
= the spot. 1 materials, forming thus ephae ed . 
were rece Abe in Corsobe in the 3d week 5 in Octo 
