250 MEMORANDA. 
6-1 inches long, 24 -3 inches broad; petiolules 13-2 inches long, 
Peduncles 6-8 inches long.  Pedicels of fruiting specimens 1j-2 
inches long. ‘There is no ripe fruit. 
(To be continued.) 
MEMORANDA. 
AMERICAN Tza-Prant.—A newspaper announcement states that the Tea- 
Plant has been discovered by a Chinaman (or as some say, by an Englishman 
formerly engaged in the tea culture in Assam) in the United States, * covering 
a large area of land in the central counties of Pennsylvania,” and that tea of 
excellent quality and various sorts, green and black, has been made for the 
mi 
o n 
has remarked that the substituted beverage must have tried the patriotism of 
our great-grandmothers, but others report more favourably of its qualities. 
(A. Gray, in ‘American Journal of Science.’) 
Tus Compass PraxT.—Riding near Chicago, August 8th, 1863, I saw, for 
the first time, Silphium laciniatum growing wild. The field had once been 
ploughed and sown with timothy, and there was a grove a few rods to the 
east. i i 
of observation, I obtained the following results :— Only one plant, bearing four 
old leaves, gave an average angle with the meridian of more than 34^. Their 
than 35^; fifteen, angles between 35? and 20^; sixteen, angles between 20? and 
8°; twenty-eight, angles between 8° and 1°; and twenty-five, angles less than 
1°. Of the sixty-nine angles less than 20°, the mean is N. 33! E., i. e. about 
half a degree east of the meridian. 
ea: 
this quantity. One-half the leaves bear within about half a point of north, 
The 
