New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1850-08-26
SCIENTIFIC CONVENTION
Americ Association for the Advancemear
of science.
Reported for fne rribuneI
AT NEw-HAyEy


HEw-HAyEs, Friday Evening. Aug. %, 1880
In the General Session OF this afternoon mum
Der Of new members wsrs added, aud tho follow.
ing gentlemen added 20 tho Local Committee Tor
the meeting at Albany Prof Jonathan Pearson. o.
Union College Prof John Foster, OF Union Col
ege; and Prof Green. OF Troy 4 Local Commit
tee was also chosen for Cincinnati.
In order to expedite the business, the Assooia.
ton resolved it's usual Afternoon Open Session into
Sectional Meetings, whore . largo number of pa
pers were presented. In the Geological division "A
important communication was made by Prof
WALTER Il. Johnson, upon the
Collaboration or CENTRAL NORTH
CAROLINA.
The coslHeld referred to lies partly In tho Coan.
ty Of Chatham and party la that Of Moore very
nearly in the geographical center Of the State OF
North Carolina Geographically, 1t appears TO rs-
pose directly but inconformably upon the apwafd
edges Of the gold bearing rocks bat Of the degree
Of conformity between the two formatiobs Prol j.
waI unable 10 speak with entire confidence. On
proceeding from Plssboro, In Chatham County,
TOW ard The norEheasterly pcrti IN OF tho coal hed
we cross the edges OF sstes, many OF which are
highly ioduated until within aoous half Q mile a
the openings, which expose the coal Toe under
lying san dstone which reposes almost borz totally
~ inclination Of not more thss s degrees. The
Coal 10 here about three sss, ia rhicsasss, and ia
covered win T., able bItunisous shsle 10 which
oot lew as .sct organic remains could be detected.
but psDy coprolites Of fishes rep.ilia. and many
mute shells are observed. 10 ghis slate are also
observed thin lamI Of cubona'e OK limo. Tss
analyses Of this coal proved IL 10 be OF the highly
htominoos hind yielding volatile 10 sstsr ~ % hteo
carbon 637s, and earthly matter 10 per Cent =
The liked carbon consequently bears 70 me yo'sssis
Ingredients Of the coal the ratio OF "a 70 ], or
roord 11mbers, 2 u.
Ths coor Of this coal Is brovnish black. 5pscs'
meTs occur on which are cavities OF coosidsfsoe
de- fth, IN which were once confaioed cave ana %"
cells. The specific gravity Of the coal IL ]. 81:
Ftur miles 10 the south west OF The hrss poini
observed, and on q tnbqrsry OF the DEEP liver,
I at q place known a. Ho.ton's Mills, tho Goa y
again observed, and has been many years worked
10 Q limited extent for local USE Tne seam ap-
peus b be four feet or more Ia thickness 70 have
q somewhat higher angle Of inclination than me
preceding and TO b Of an entirely dihsreas com
position. Its specific gravity 10 ooxe,sr me s,my,
/. 81. IL CONTAINS, Of volatile matter only ". "
DER cent fixed carbon ~ 81, and OF esrthy matter
J. 60 ara consequently the aaed is 70 the volatile
combss.ible matter ~ ", OF 10 wnoa n1moers,
a3oI. The color u The coal 10 JET black, laster
| shining and some Of the surfaces are ssrated Ia
manner similar 70 that Of certain ssmi-lissminogS
Goals Of South Waies
Ia third locality which lies VI thin the borders
OF Moore County. ard about 81 and half miles
souib- west from Horizons Mil 10 found coal wide
~ different from both the preceding La the arst
place, lie specific gravity IL IS insteaf OF on.
10 the second place its volatile mstter IL oulv & "a
per cent, while is fixed carbon IL 80 rs. and IN
entby matter 10 g. 60; consequently the sIssiou
of the fxed 20 the volatile ingredients Is ~ 81 IA
], or We may say l2i 70 /. Tnis circumstances, n
vel - ifs shining luster, iss hardness, lie hish
specific gravity, and IL undergoing no proper "a.
sumesesnce when heated 10 rsdness In cioee ves.
seis, txes iis character ~ . true snshrscits. Il
stands Ia the range Of is class BY tbs ride on ths
anshracites Of Lyken's valley and some Of thoeo
vest a Pine Grove in the southern coal field Of
Penpsy lvsnia.
On pursuing the rsBss Of the Coal formation stil
further scs'h-wssswgd, We aad the dates, i Z