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Collection: Books and Periodicals > Mining & Scientific Press
Volume 24 (1872) (424 pages)

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Page: of 424

342
SCIENTIFIC PRESS) {June x, 1872.
Norton’s Door and Gate Spring.
‘Please shut the door.” How often we
see this request posted on doors, and yet
how little attention is paid to it. Itceems
as natural for an American to leave a
door standing open behind him as it is
for him to bolt down his food in a state of
semi-mastication. Both of these hahits
result from the same cause, viz: the Ameriean custom of doing every thing with a
rush. It takes too much time to wait and
close a door, and often having to wait to
open a door in order to get out of a room
seems a waste of time. Why can’t doore be
made like the patent lazy farm gate,t open
when it sees some one coming and close
after the person bas passed through?
Norton’s door and gate spring accomplishes
the latter object, and thus one-half of the
tronhle is ohviated.
This door and gate spring is a neat and
cheap arrangement that can easily he
applied to any door or_gate for the purpose of keeping itelosed, and we advise
our friends who have pusted on their doors
the request at the head of this article, to
pull it down and ap ‘ly one of these springs
It accomplishes the ohject in a very satis
factory manner. Davis & Bliven of thicity are the proprietors of the patent right
on this coast,to whom all ordere should be
sddressed.
Niles Station Bridge.
The Board of Supervisors of Alameda count;
have contracted with the Pacific Bridge Com
pany, to erect a hridge of three spans, of 1834,
feet each, over the Alameda Creek, near Nile:
Station. The superstructure is to he a Smith
Truss. with roadway eighteen feet in the clear
and huilt entirely of wood preserved by
the Pacifio Wood Preserving Company.
The piers are to he of cast iron, filled with
concrete and sunk to hed rock, or a sohd fonndation.
They are constructed on the plan introduced
hy the Pacific Bridge Company last year, and
seem especially adapted to the rapid current
and drift they will have to resist at the mouth
of the Alameda Cajion, where they are to be
placed.
The Pacific Bridge Company now dress all
timber need in the framework of their hridges.
They have just shipped a hridge to he erected
over Hovias Creek, in San Mateo county, and
will soon ship one of 150 feet in length, to
span a creek in Sonoma county, hoth of the
Smith Truss patent.
The bridge over Alameda Creek is to he completed hy the 11th day of Angnst. The Howe
Truss. Burr Truss and Pratt’s Truss were all
ompeting plans hut the Smith Truss was preferred.
Raprp anp Pracrican Mernon or SEPARATING
Coprgek rrom Sriver.—In the preparation of
nitrate of silver from silver coin which contains
several per cent. of copper, R. Palm employs
the following method, dependent on the insolubility of nitrate of silver in concentrated nitrie acid :—
The coin is dissolved in nitrie acid, and the
solution evaporated to the consisteney of oil.
and then concentrated nitric’ acid, free from
hydrochloric, is added; the silver salt ervstallizes ont while the copper remains in solution.
The precipitated salt is then washed two or three
times with concentrated nitric acid to remove
any adhering copper salt, which gives it a
hinish shade, On drying. any acid attached
to itisevaporated. Itis essential that the solution he evaporated only to the consistency of
oil, for if evaporated to dryness, the copper
salt adhvres so firmly to the silver that it can
with difficulty he removed. The more concentrated the acid. the more completely the silver
will he precipitated. hut an acid with a spec.
gr. of 1.25 may he used for completely separnting the two metals. Three or four parts of
encentrated acid are required for one part of
tho concentrated metallic solution.
Discovery oF a New SpecrEs oF
Waate.—In a letter toMr John W. Strauchon, Professor George W Davidson informs him that the petritied whale bone
taken from tbe artesian well which is heing
eunk hy Messrs. Calloway & Co. in this
city, has been proved a portion of a whale
of a new species hy the savans of Philadelphia Academy of Natural Sciences.
The Professor is desirous of obtaiuing additional portions of the skeleton if possible
to present the same to the above institution, of which he is a member.—San Diego
Onion.
Recent Geographical Work on the Pacific Coast.
We eelect the following items from the
American Journal of Science for May :
Report of the Eng. Corps, U.S. Army.
This report was presented to Cougress
last Decemher.
Nevapa anp Arizona.—The explora:
tions nnder Lieut. Wheeler, hegun iu 1869,
have heen in progress during the past
year.
AwAsKkA.—Captain C. W Raymond has
made a reconnoisance of the River Yukon
His report, with a map of the river, has
been printed separately by Congress.
FortietH# ParaLtteu.—King’s survey is
still in progress. A clear account of all
the work hegun from March, 1867, to Oct.,
1871, is given in the report, from which
we extract the following asto the methods
of work, prohlems investigated aud chief
results : ;
“The foundation of our explorations
bave heen a continuous system of triangulation, carried from mountuin-top to
mountain-top, and the whole extent of our
work, hy theodolite observations upon
stone monuments. Within the primary
triangles a large number of secondary
triangles are located, and from these,
working always inwardly, a thorongh
system of minor triangles. In connection
with this, the altitude of all prominent
mountain-peaks and localities upon the
plairs have been determined.
**Tn the department of geology, careful
ind uctual sections bave heen made over
the whole area; the snperposition of the
immense variety of irruptive rocks has
heen, in almost all cases, accurately determined ; the dynamical questions, such as
the build of mountains, the upheaval of
chains, and the formation of mining districts and of mineral-bearing lodes have
received careful attention.
“In hotany a very large collection has
been made, resulting in the discovery of
»ver 100 new speciesof plants, in a comnlete knowledge of the distribution of
‘imber and of the leading families of the
desert flora.
“In zodlogy the collection has heen
equally careful and theresults are of interast and value.
“The work emhraces a complete scientific examination of a section of country
which traverses, from east to west, nearly
the entire Cordillera eystem. The rocks
at our easternterminns are already those
of the Atlantic formations and are heing
extensively studied hy a numher of geolosists.
“Tn mining
been worked
industry our lahors have
up and the volume and
‘ecompanying atlas printed. Also, the
topographical maps are plotted on ascale
of 2 miles to the inch, and have been photographically reduced to a scale of 4 miles
to the inch, resulting iu three maps, ahout
30 or 40 inches each. These are now being drawn in hachure, preparatory to lithoerapbing.
“The volume of botany is completed
[and puhlisbed]. That of geology is also
completed and awaits the printer. To
complete the serics I propose two more
volumes: one of descriptive geology and
one embodying general results. The former is now in active preparation and the
maps accompanying it are in the hands
oi the engraver. For the geueral volume
Iam unahle at present to fix a definite
time. When finished the series is designed
to embody,
“1. A ground-work topographical map
upon which shall appear all the features of
the country surveyed.
“2. A-series of geological maps, illustrating the formations of rocks, soils, alkaline
deposits, and the distrihution of arable
land.
“3. A general renort which, in a syntbetical manner, shalldescribe the history
of the formations of that portion of the
Cordillera, its original deposition in the
primeval ocean, the evolution of continental features and mountains, the minute
lithological structure of each family of
rocks, and chapters upon the volcanic
and glacial ages; and an attempt to explain
the present physical conditions, and an
account of the cousiderable climatic
change now going on.
“As appendices to this, the 2d, 34,
4th and 5th volumes will -treat of technieal geology, zodlogy and mining industry.’
River Surveys, more or less in detail.
have heen made in various regions; including the Willamette, tbe Umpqua, and portions of the Sacramento.
Yellowstone Geysers.
The most valuable sources of iuformation which have come under our notice are
as follows:
1. A picturesqne description of the Geyser region, hased upon the ohservations of
the Washburn-Langford party, printed in
Seribers Monthly in 1871.
Anaccount hy Walter Trumhull of the
Washhurn Yeliowstone expedition apvee in the Overland Monthly for May,
1871.
2. Reconnoissance by Capt. J. W. Barlow, U.S. Corps of Eng., made in 1871;
published hy permission in several newspapers of Jan. and Feh., 1872
8. Railroad reconnoissance of the valley
by Gen. W. M. Roherts, Chief Eng. N. P.
R. R., made 1871; printed by the railroad
company but not yet published.
8d. Thereports of Dr. Hayden’s visit in
1871, with two maps; also prepared for
publication ou a large seale.
Preliminary report of the U. 8. Geol.
Survey of Montana, and portions of adjacent Territory, heing a fifth Annual Report of Progrese, by F. V. Hayden. U.S.
Geologist. Conducted under the authority
of the Secretary of the Interior, Washington, 1872. This gives un account of his
explorations in the Geyeer regions, with
notes on the geology on his route from
Utah through Idaho and Montana; it contains, also, reports on the physical features
A
—_
A FREAK OF NATURE.
and conditions, the geology and the natural history of a considerable part of the
Rocky mouutain region.
Route of the Northern Pacific Raitroad.
This region was first made known hy
the journey of Lewis and Clark, in 18045 and 6, was surveyed by Geu. I. I. Stevens
in 1853-4 and 5 (report published as vol.
XII, pt. 1, U. 8. Pacific Railroad Report) ;
and was carefully examined hy Capt J.
Mullan (who huilt the military road from
Fort Walla Walla to Fort Benton in 1862),
whose report was puhlished by the Government in 1863.
1. The N. P. R. R. last year published
(?) Gen. Robert’s report of the resonnoissance in 1869, of the route. The same
engineer was engaged in 1871 in examining the Rocky Mt. Divide between Lewis
and Clark’s Pass on the north and Deer
Lodge Pass on the south, a distance of
nearly 100 miles, covering all the passes
of the main channel available for the railroad. We snbsequently went dowu to the
Yellowstone as mentioned before.
2. Atthe same time Gen. F. L. Rosser
surveyed a route hetween the Missouri, at
Fort Rice, and the Yellowstone.
8 Mr. F. Wilkeson also made last
summer a geological examination of the
region between Cadott’s Pass and Deer
Lodge Pass, with reference to the occurrence of coal and iron.
4, Mr, C. A. White has heen across
the Grand Plain of the Columhia and
through the Grand Coulée.
(These four reports have been presented
hut not yet puhlished).
Transportation Routes in Minnesota and Dakota—
Colorado Expedition.
A very interesting map of transportation
routes in Minnesota and Dakota, including
railroad, mail and express routes, has just
heen prepared hy Gen. S. R. Hotahids,
Chief Quartermaster of the Department of
Dakota, and published in a scale of 10
miles to the inch.
Major Powell's Colorado expedition
in 1871 passed through the canons of Green
River and of the Colorado to the month of
the Paria, at the head of Middle Canhou.
On tbe way the party explored the region
west of the rivers named, tracing the large
hranches to their sources, and examining
the geology of the great mesas and cliffs.
Early in the winter a base-line, 47,000 feet
long, was measured in a meridian running
south from Kanab, and the party is now
triangulating among the peaks and cliffs
of lateral canone of the Colorado. Many
prehistoric mines, stone implements, etc.,
have heen found; also a tribe of Utes in
the Kaibah Plateau who still make stone
implements.
Curious Freak of Nature.
The accompanying drawing represents a Radish curiosity, (size of thesketch,) grown in the
garden of T. Hart Hyatt, Oakland, the present
season. The two radishes tied themselves together, as shown, without aid. Whether itisa
matrimonial knot, or not matrimonial, we cannot say.
fhe Mines of New Mexico,
From recent accounts from Silver City
and other mining regions, the fact, which
we have often hefore enunciated is now
becoming more and more ohvious. To
render New Mexico one of the richest
wining regions in the Union, it needs but
capital, machinery and enterprise. True,
skilled lahor, and protection for life and
property are also needed, but all of theee
latter will follow capital and machinery.
We have no hesitation in eaying that for
the surplus capital which now lies idle in
the States awaiting an opportunity of
profitahle investment there is no hetter
field than the mines of New Mexico. Its
wealth in minerals cannot be overestimated, nor is its wealth confined to minerals. With a climate unsurpassed on the
American Continent and a eoil whose richnese is proverhial, the agriculturist, the
stock-raieer, aud the vinter—for whose
business its climate is especially adapted,
are invited by an undeveloped country
and a lavish profusion of nature’s richest
hlessings to come here and establish
homes for themselves and their posterity
andin so doing reap the harvest of prosperity.
‘The people in our mines are thrifty, enterprising and hopeful for reinforcement;
hut they need the capital to their friends
elsewhere, conjointly with their willing
lahor, to give the nation the benefit of the
wealth within sight and to give an unnsual
profit to all engaged in its developments.
The passage of the Denver and Rio
Grande aud also the Texas and Pacific
railroad bills, will give assurance, that
hut few years can pass hefore capital and
immigration will pour iuto the country.
Meantime, though the need of capital is
sorely felt, and if those having a eurplnus
of it at their command would give the
merits and advautages of onr mining localitiesa fair trial, we are sure the examination would lead to investment and the
investment to arich and certain profit.
Of the future of our mineral sections we
neither have, nor reasonahly could have
any douhts. Still we are anxious that
our claims should be known and that easterm capital now lying idle and nnproductive may have an opportunity to increase
itself os well as aid the enterprising
frontiersmen who are now struggling so
bravely, and against such odds, to spread
civilization, commerce and enterprise
over this rich, but much neglected, portion of the Union.—Sanria Fe Post.
Jaran.—The recent great fire in Yedo, Japan,
destroyed all the houses within an area of four
miles long by three wide, and contrary to the
usual custom there, where large fires occur
frequently, the city will he hnilt up again in a
more substantial and civilized manner. A new
survey is to he made, the streets widened and
the huildings to be of hrick. There is little
doubt but that the Japanese will see the evident
superiority of our steam fire engines over their
inefficient system and will order a number of
them from this country. Their progress is
very rapid and they manifest an earnest desire
to become familiar with all the the implements
of modern civilization, which they substantially
prove by their large orders from the United
States. .