Geology and Natural History. 393 
ject, with new observations and experiments, now asserts, upon 
reasons stated, that 
“The starch appearing in the seed-leaves of plantlets of Cress 
Radish and Flax, is not a direct assimilation-product, formed by 
the immediate decomposition of carbonic acid, but a transforma- 
tion-product from a reserve of nutriment already present.” 
that starch in chlorophyll-grains is “a product of assimilation, 
d 
ently originated from one in a potato, except that the former is 
constructed of new-formed material. A. @ 
0. A Report on the Trees and Shrubs growing naturally in 
the Forests of Massachusetts y by Gzuorcse B. Emerson. Second 
e& . 
ted, forming two volumes, which reflect great credit upon 
those fr 
ews of many foreign, mainly ree ere trees, copied from 
hose W 
the many more who ought to be planting them, will value : 
Attractive pictures the more, since they mainly represent well- 
to thrive in this part of the country. them, from 
Figuier’s Vegetable World, border a little on the sensational or 
factitious, The only one we are dis to find much fault with 
Stands in the place of honor, fronting the title-pa e, “Sequoia 
ry tea, or Giant Pine of California.” Why should it es 
x ? Cypress would be nearer the mark if any of the o 
