New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1869-09-23
SCJENTIEJC NOTES.

TUE YFFFCT OF FREEING. LondOh
pov News says II is not generally supposed "'
the Act OF freezing eliminates from water all impure
matter IL generally does eXtrude colorng matter Ou
moi organic impurities indeed snch matters aou AZ
prevented from decom0Nng by the Cot ne temner.
compose with redOuOed eAercy nmeas6iS ~, mn
ature is sufficient to melt the ice whoH n"IU '"0'"
ADVANTAGE OF POWDERED LIME FOR MoR-
TARA French engineer has made an aole report ou va
economy Of using lime ground 70 hne powder ins', IL
of shaking II in humps He estimates the loss IN using
humps at Is per cent. Besides tLs saSn9 o. 4 icI
Is found that lime IN powder - 10, aud ~ more
NV and the mortar thus made hett quicker anu % O
solid.
Rpoxz,NG PoRCELAN.-B Ottger gives SIM
nile nrocess for brOnziug porcelain sODe"are' ana co
roston pieture frames which consists IN covering 'no
articles with thin solution Of wateTgiass appneu WIN
80, hr,sn and then spruklng the surface with bronze
nowder The article next heated ana Wnen tne 70
~ soda or water glass IL dry the bronze VIII Deeoie
Sttached and may then De polished or DWusneu WIN
agate tools ,.,,,,,,,,
OxyGFNATED WATER IN TIE ATMOSPHERIC
s,yuve sends 20 the French Academy some interest
ING facts. from Tins the capital CITY OF Georgia III
Asatc Russia observed by him In reference 10 ne guam
tty OF nitrate OF ammonia ozone and oxygenated wtt
1peroxide OF hydrogen present IN ram wafer anu d
eater ATTAINED from melting snow ana nail Inc dutno
used oxide Of lead Us test, winch was converter INV
peroxide. n,
SotrRIIITY OF. Sulphur IN Coal 0ns.-M.
Pelouze has sent paper TO me French Academy OF sell
ences on the soubity OF sulphur in oils derived Hoi
coal He shows that the denser the oil the greater the
quantity OF sulphur dissolved at equal temPeratues
INNS al 1000 cengrade, 22o Fahr OIL OF the density
Of OO will dissolve much as "a per cent WINE nELV
benzne having density OF OSLO, VIII not dissolve
tban rs. Der cent 100 c. the power OF solution OF
certain oils is much as ITO PCT CENT anu "DV'' " ~
or 2iso r., IL is almost unlimited
MATERIAL FOR STAINING GLASS AND tAIENCE
wARE-AecordIng TO the analysis made by Dr. H.
Schwartz the substance producing bright brown Color
was found 20 consist IN parts OF oxide OF chromium
II 30 peroxide of iron, 2lOO aumina, 1905 OXIDE Oh
zine so 90 This material prepared by dlss0lVlng ~
water II ounces OF chrome alum co ounces OF pefsu
hate OF iron 100 of alum and $50 ounces SUI
phate of zine which, after having been mixed ana pre-
nted by means Of carbonate of Soda are collected on
a filter washed, dried, gently gnited, aud ruDDeo 10
powder in agate mortar
SUNFLowERs AS A PREVENTIVE OF INTER
nITrENT FEvERs-In consequence Of experiments long
since made IN this country and of the publicity recently
given 90 the statements made by NJ. Martin, before the
SOcIet6 Therapeuuque of France on the admirable re-
suits obtained by planting the sunfower as dislnieetan
of the asma causing intermittent fever the Minister OF
Agriculture and the head of the Sanitary Bureau in the
Department Interior in Italy have been actively en-
gagged In promoting TO secure the ike desaDle
results the most feversriken districts III that KING
dom.