New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1874-05-23
APPLIED SCIENCE.

49,. ,,e.u,,~. STFFI-An alloy Win inc
properties of steel may DC io'nnvu, 49,, tungsten
Eronob natent. by fusng together noh' lungs
"a n;ckel in o crucible by the ana OF nuA ~.
,roi NV melting together so parts OF poi"oio "''u
% Of oaicined quartz and 80 of carbonate Oh i'ie
For ,be first quality of alloy 93 per cent OF SOY t
~ af tnncsteu and of nickel are employer ioi Wv
.acond ouality % per cent OF soft lron - oi o. ~
stem and of nickel for the third quaa ns Nickel
,er cent OF soft iron % of tungsten ana VI h'"'
,,rruvr VIOLET on WOoL--For 10 pounds o'
- hol D., ornce of methyl violet in soap BATH
r,enared by boiling pound of Washing soap anu
a. ,ho articles at 1882. To produce bluer shade,
orst dive in bath of metl violet alone AT i4o 10
,sso. and then boil for hour in soap bath oil
mound of soap. The wool, however, ID tils c"sS
must he dyed n few shades darker, since Ihe SOAP
bath renders the color lighter. The color op,aheu
in this way is toerably pure, very oi4e am nnt ~
desired shade may also oe produces ~ &c Cia6c
salt ! pound of sulphuric acid and ounce Oh
Wethyl violet
RANKING TREES. FOR TAN, WITH STE,M-An ap-
,arotns potented by Maitre, for the employment OF
steam in peeling bark for tan described in D'"gc'S
r,r,ol for 1861 IN regard to which very contradc-
tory oninions were expressed, has been tested at
Wiesbaden. under supervision of the Government
with the following results: The quality OF the
leather corresponds to the amount of tannln In the
bark The variation of the amount of tannln IN the
b1rk al different seasons of the wear, is 100 sma 10
he regarded IN tanning. Inc amount OF tanuin III
bark removed by the Aid OF steam, IN the SpIlns
from trees felcd IN Winter, showed no loss etu.I
by chemical analysis or by actual experiments III
tanning. The process therefore, on THESE points, Is
not Objectionable.
PuY1IoxERA THE RESULT NOT THE CAUSE OF THE
VINE DIsEAsE-M Gu6rin M6nGyille, in commu-
nication TO the Academy of Sciences of Pans, taxes
the ground that the phyloxera Tor grape vine ouse)
is not the cause of the vine disease but simply an
accompaniment of it, the pathological condition OF
the vine permitting an enormous multiplication OF
the insect. Until quite recently the phylloXera has
remained almost unapprecate1 on account OF ITS
.lmnutiye size aud its retired litc but III the dis
Gagged state of the plant it il multiplied TO such an
extent as to make itself manifest to the notice OF all
In TINS view all efforts at removing the cNlI DN APP
pcations to the insect must necessarily be frultie
and only those which serve a. manuIcS or sumulahtS
20 the plant itself Will be of any avail
CONTINUED GROWTH OF BARLEY on THE SAME
LAND-As the result of experiments on the growth
of barley on the same land for 20 years in succession
Messrs Lawes q Gilbert report that when the same
crop is grown consecutively on the same ground FOL
series of years mineral manures alone fail to en-
able the plant to obtain sufficient nitrogen and car
bon to yield even fair crop that nitrogenous ma
nurcs alone increase it very consider ably but that
the largest crops are obtained when nitrogenous anC
mineral manures are applied together, In case Of
barley these combined manuieS gave Tor ~ years II
snccessiou on the same land. rather more OF bOtl
corn and straw than famyard manure dld; con
siderably more than the average barley crop OF INC
country grown under a system of rotation of crops
and average weight per bushel OF between % ahC
b pounds