Miscellaneous Intelligence, 445 
known in the primitive forest within a distance of fifty miles; also, Dr, 
Dwight’s account of the appearance of a field of white pines, on sus- 
was exclusively of angiospermous trees. “The fact that these white 
Pines covered the field exactly, so as to preserve both its extent and figure,” 
says Dr, Dwight, ‘and that there were none in the neighborhood, are 
decisive proofs that cultivation brought up the seeds of a former forest 
= limits of vegetation, and gave them an opportunity to germ- 
has ho. aston established in Denmark * the researches of Steen- 
— on the preis or Forest-bogs, of that country lows Acad. Sci. 
i, =e al that “a great store of frre” is found lying “at their whole 
lengths” in the “fens and marises” of Lancashire and other counties, 
where not even bushes grew in his time. (See further, Monee Man and 
5 selbte p. 222.) No doubt such extinct forests have flourished in 
merica, even since the Glacial epoch, and have stocked the pacotion i 
soils with their stores of vitalized fruitage, svete some future resur- 
rection; and no do so the “fens and marises” 2 of Lancashire, under suit- 
able circumstances, would reproduce from their granaries of forest fruit, 
the arboreal repuetiod which had flourished and disappeared before the 
an conques 
Ann Arbor, Mich., Oct. 15, 1864. 
10. A jet dean made by means of the heat which air, when confined 
confined urider glass, if it receive the ‘i rect rays of the sun, will be- 
come much: heated, far se the temperature of the rays, owing to the 
| glee nin pepo she hotbed to the rays of the sun. Two curved tubes 
rnished with stopeocks pass under the black bell, one of them to sup- 
= water — it is required, the other to yj exit rs the Beings oe 
ne 
