Scientific American Supplement, No. 484, April 11, 1885Various
Science
Scientific American Supplement, No. 484, April 11, 1885
Various
Science -- Periodicals
_H. tuberosus._--The well-known Jerusalem artichoke; not a plant grown for
ornament, being too coarse and late in flowering, but several things in
its history may be mentioned, as Dr. Asa Gray has spent labor and study
over it. It is believed to have been cultivated by the natives before the
discovery of America, and the edible tubers are thought to be a
development of cultivation. Forms of it without tuberous roots are found
wild, but whether indigenous to the place or degenerate from cultivation
was for long uncertain. Several species of Helianthus have a tendency to
produce similar fleshy tubers at the top of the roots. Dr. Gray used to
refer the origin of this species to H. doronicoides, but it is now
believed by him to be a distinct species, though one of which it is
difficult to identify with certainty the typical form.
I omitted to say that the word Helianthus is Greek for sunflower. After
several years' careful observation, I believe the notion that the flowers
keep their face to the sun is quite a delusion.
Edge Hall. C. WOLLEY DOD.
* * * * *
A QUICK FILTER.--The _Druggists Circular_ recommends chamois skin, free
from thin places; cut it of the desired size; wash it in a weak solution
of sal soda, or any alkali, to remove the grease, and rinse thoroughly in
cold water before using.
Tinctures, elixirs, sirups, and even mucilages are filtered rapidly. A
pint of the thickest sirup will run through in four or five minutes. By
washing thoroughly after each time of using, it will last a long time.
* * * * *
LYE'S FUCHSIAS.
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