208 Germination of Maize Grain. 
61. Purple colour of Glass increased by light.—M. Fara- 
day has found that by the exposure of plate-glass with a pur- 
ple tinge to the sun’s rays, during nine months the purple 
tint had increased considerably, while pieces of the same 
gins kept in the dark had suffered no change.— Quart. Journ. 
o. 3l. 
¢ 
62. Flora of the Greek Archipelago.—A full and exten- 
sive Flora of the Greek Archipelago, and the shores and 
islands of the Euxine, by M. Dumont D’Urville of the French 
navy, has appeared among the transactions of the Linnzan 
Society of Paris. Those countries, so long under the semi- 
barbarian power of the Crescent, have never, until now, been 
botanically explored since the days of Hippocrates, and of 
the Grecian botanist Theophrastus, save partially by that pa- 
triarch of the natural sciences, Tournefort U 
was well acquainted with Grecian literature, and has affixed 
to each plant its own Hellenic denomination, as given in an- 
cient classical authors.— Dr. Pascalis’s Address. 
63. Effects of an earthquake on the vegetation of wheat.— 
{t is aremarkable circumstance, that since the great earth- 
quake of 1687, no wheat will grow on the coastof Peru. In 
some places, indeed, a little is rzised ; but it is very unproduc- ° 
tive. Rice, on the contrary, yields a great return. Before 
the earthquake, one grain of wheat yielded two hundred 
grains.—Edinb. Phil. Journ. Vol. X. 
64. Maize grain remarkably retentive of the power of Ger- 
aninating.—It is worthy of notice that the maize which is found 
in the graves of the Peruvians, who lived before the arrival of 
Europeans in that country, is still so fresh, that when planted, 
it grows well, and yields seed.—Jbi 
