Vermont watchman and State journal. [volume] (Montpelier, Vt.) 1836-1883, 1851-04-03

.Ncto Inrention. In company with several scien-
tifc gentlemen of this village we had the pleas
ure of witnessing few days since, most pleas
ing and wonderful experiment in electro-magnet-
ism. Mr. Davenport, of electromagnetic noto-
riety. and his associate, b Bacon, ESQ.,, produced
some of the most beautiful and harmonious tones
of music hv the electro-magnet that we ever
heard. The tones were produced by vibrating
wire strings, stretched upon sounding board
similar to the strings In piano. Eleciro-mag-
nets were placed with their poles near the vibra-
ting wire and whenever the battery current was
thrown through the conducting wires, the attrac-
tive power Of the magnets caused the strings to
vibrate, producing the most SPLENDID musical
tones. We learn that r. II. Green, Professor OF
Music, is engaged with Messrs. Davenport and
Bacon, and is now constructing iull-size nstru-
ment, and sevearl models, for European countries,
where the proprletors intend procuring letters
patent.
From the experiments we witnessed, we can see
no reason why the tone of the piano forte cannot
be prolonged TO any length OF time by this mys-
terious power Mr. Davenport informs us that he
commenced his experiment for producing music
by eectro-magnetism more than four years ago
under a clear conviction of ultimate success, and
has prosecuted them under the most disc ouraging
and uniayorable circumstances. We wish the
proprietors success, and verify believe that this
invention is destined to astound the musical world
Brandon Post.
The Vrcinia Elections Postponed The Leg
slature OF Virginia on Thursday passed an act
providing for the submission Of the new Consti-
tuition TO the people ON the fourth Thursday IN
August and for the postponement ofall the cleo
tons, both for Congress and the State Legislature
until the fourth Thursday in October next
o. We are happy that it has been ascertain
ed, after full inquiry, that the recent rescue at
the United States Court Room, IN Boston, was
san entire surprise upon the citizens, and upon
the authorities: an act Of successful tcmerty, on
the part of very uncomfortable number Of per
sons; which only needed to have been apprehcn-
ded the shortest time beforehand, TO have been
prevented" This is what the President directs
The Secretary of State to inform Mayor Bgeow.
1t tells the whole story-.4Hds.
Potaioes-The TURNER'S Perhaps we can
give hint to some of our farmers in relation to
the growing of Potatoes that will be of service
to them. Some, no doubt understand the mat
ter-others may not so fully. 1t relates to the
kind of Potatoes to be cultivated, and the differ
ence in the profit realized from them.
This year. aud it has been uniformly the case
we understand there has been difference IN the
price obtained in Boston, Of from ~ to 20 cents
bushel.
The Pouch Ho,o and the Pink Eye, command
inp, on an average. about Is cents more bushcl
than the more common kind of potatoes. The
round and large Pink Eve is the kind we refer
to- This kind aud the Peach Blow are as pro-
ductve as the common white potato-thereiorc
should have the preference by producers for the
market The Peach Blow bears a little the high
est price.-'lhe small Pink Eye, less round than
/ tho kind referred TO- IS still moro valuable. but
is less productive and more difficult of cultivation
/ Prehaps if we should nnine fact the difference
| in the present price of potatoes would appear
still more apparent. buyer remarked a dav
or two since that he wonld nav 80 cents BUSH
ell for 500 bushels ofthe round Pink Eve. The
common white potato sells here for from 33 TO IS
cents bnsbel
There can be scarcely doubt but at all times
the rght sort of poato NAV be cultivated TO rood
advantage by our farmers. The averare price
of rood notatoos IN Boston. for the last half
dozen or more wears. has not been less than IS
cents. The freight, bv Railroad is Is cents per
bushel. Should the market price be less than
65 cents there is left an ample margin for prof
liable cultivation.
Some farmers ofour acquaintance have pro-
cured the better sort of potatoes for seed. and
will if the season proves TO be favorable turn out
large quantity for market another fall
oaedo"'d''
Number of Fugiiire Slnres. II is stated that
according TO the returns of the Marshals. the IN
crease of tho colored populatlon of New England
for the last ten wears has been only about equal
10 the natural increase showing that the number
of fugitive slaves cannot be very large.
correspondent of the New York Tribune.
who has had access TO the census returns. con
firms this view of the matter. The law requires
return of the number of slaves abscondinp in
the wear. and of the number manumitted during
ooseondng slaves yes are returned and md very T lew