390 NATURAL HISTORY MISCELLANY. 
CHANGE OF COLOR IN FLOWERS PLACED UNDER GLASSES OF DIF- 
FERENT CoLoRS.—M. De Candolle suggested the construction of 
experimental green-houses and hot-houses, and gave his views as to 
the plan to be adopted in their erection, so as best to serve the pur- 
pose of the physiologist. “A building, such as I propose, would allow 
of light being passed through colored glasses or colored solutions, 
and so prove the effect of the different visible and invisible rays which 
enter into the composition of sunlight. M. Von Martin placed some 
plants of Amaranthus tricolor for two months under glasses of various 
colors. Under the yellow glass the varied tint of the leaves was pre- 
served. The red glass impeded the development of the leaves, and 
produced, at the base of the limb, yellow instead of green; in the mid- 
dle of the upper surface, yellow instead of reddish brown; and below, 
a red spot instead of purplish red. With the blue ae which al- 
lowed some green and yellow to pass, that which was red or yellow 
in the leaf had spread so that there remained only a sae border or 
edge. Under the nearly pure violet glasses, the foliage became almost 
uniformly green. Now that plants with colored foliage are becoming 
fashionable, it may interest horticulturists to know that by means 
of colored glasses, provided they are not yellow, they may hope to 
our present vegetation would take an excess of carbon from the air, 
eral existence were inconvenienced by it. Then might 
' be ascertained what tribes of plants could bear this condition, and 
what other families could not have existed, supposing the air had 
formerly had a very large proportion of carbonic acid gas.”— Quar- 
terly Journal of Science, London. 
r —1+ 
ZOOLOGY. 
Tae STUFFED W. SwepisH Museum. — Professor Lill- 
jeborg describes, in a letter to Dr. J. E. Gray, how this species of 
be (Baleoptera) was stuffed, which we translate as follows. The 
of the same was divided into several portions, and then stretch- 
res over a model made of wood of the exact form and size of the ani- 
wrinkles, which, however, are not to be seen.— Annals and Magazine 
of Natural History. 
