Meteorological Journal kept at Marietta, Ohio. 243 
ae ~ the process continued and conn’ as described 
In the second. part of this paper qualitative examinations of 
the alkalies in silicates will be alluded to, as well as the separa 
tion of the alkalies from each other. 
mmary.—F use one part of mineral with one of fluorid of 
ealciam and four to five of carbonate of lime; dissolve out the 
hess and redissolve ; precipitate with carbonate of ammonia; 
filter, boil and concentrate the filtrate; add vite acid, heat and 
evaporate to o dryness; dissolve the dry mass in a little water and 
tteat with carbonate of ammonia; filter and concentrate, then 
add sulphuric acid, boil for a little while; pour in a platinum 
ctucible, evaporate to dryness and ignite. ‘If magnesia be pres- 
fit treat with abedalenty prior to the last binplicesic of carbon- 
ate of ammon 
“Laboratory of a University of Virginia, Jan. 21st, 1853. 
4. ae 
Arr. XXVIIL — Abstract of a Metrologia Journal kept at Ma- 
1852: Lat. 39° 25’ N., 
es Ohio, for the Year ; and Long. 
tik of Wadi GAH by 8S. P. iesac MD. 
Pe gs a 2 BAROMETER. 
: Bis 
chin! E 4 
At & -1>4 : 
MONTHs, a :| nh & io Winds. ae 
ot SR Pe eS bs 8 fa 
Shei g SSIES 5 a 
108 | fla iede < #3 & & 
ets ets a |g 
2.\8)2 6 S18 go S70 hee tae 
24:66|60/-23, 13.18| 208s. & W. &S W. 29°80. 28-65 1°15 
12} 15' 14) 3:66) ws. w. GE. (29°75 28°55 1:20 
12; 12° 19) 4:30)N. NW.&E SE. 29°90 28-98) ‘92 
Bonar | on the Year.—The mean temperature for the year 
ity, 20 vaeyng but little from the annual average of this local- 
sal - mercury in Fahrenheit, fell to 
at other points higher up the Muskingum 
