402 GEOLOGY OF OHIO 
deserves the name of blackband ore. It has too much carbonate of 
iron to allow it to be called a bituminous shale. The results obtained 
by Professor Andrews would make the deposit a very valuable bed of 
ore. The results obtained by the Survey do not indicate any real 
economic value under present conditions of iron making. The disparity 
in the two sets of analyses, it is hard to explain. Professor Andrews’s 
work is entitled to respect, and certainly the Survey has not spared 
trouble to ascertain the facts. 
1 2 3. 4 
Silicate ae tedttorate. Sehssc 8. ee eee 37.52 34.28 28.82 8.67 
JEON ayy ONKOL ROD: 416 (jgseno.coooc05eces4G5000060000008008000 13.75 15.29 19.85 43.11 
Tron sesquioxide.t...sc5.2ces as cceeeero ance 1.57 4.64 5.43 0.42 
PAW) aa) tol: WEAR C HR eREe Ee Err Amn Tanna OA Arora aa 5us| oaaseanceobaued ueonose user 13.31 4.47 
Manganese Oxide. ..ctht Ae siicc.c sttenccmes see sal Remon eisenremne aller eeareeatatisnrcs 0.04 2.07 
DAMIAN es Piece eeevn dea davene ones mane teeteec eae ene ete eee Oatar eae nae Wire etatcat te ahs 2.95 5.15 
Ma piesa joerei te lcci cn sovenca cortices rate nese cate tae suabinrien relllmenonatiacticst 0.94 2.09 
CaF DONIC ACA lel. cat Mec cs cece eotencec sesso eee eee a] Maceccewests see] Masmeenccicene 15.46 32.74 
PHOSpPHOriCiaCid eee sik eee Ce. es hm i mnnbea| uuteaeach ake 0.275 1.176 
FeLi 0) 01h Deena ee Reiner alert  oanie Jesceec-cucnll saSoacurcaccnual locsecocnateeeee , 1.810 0.178 
Wiaterandorganichmatterteccs.t-c-25eeete| Coen ceecscesealiiccescaseeces 8.95 0.25 
SMIOISLURE: occ; Me swines te ocho voek sete slosmieceusemeoseal lcs oece eee Mecaceteescese 0.58 0.12 
BP SECC CDAR EA ET FE SCAeCEE EEE 98.41 100.44 
MIAN TROY sodoaodoaueatad 100086000000 000000000009 11.80 15.15 19.25 33.85 
TEV aKaYs) OVOP DIE) Roccdossneo coeSbandaGbosHOS doboogts000050 0.160 0.071 0.120 0.513 
POUL OY AUN? coocacbunagodd egosSabooscbeacadedceds ocb00060d 0.699 255 1.810 0.118 
The discussion can be summed up in few words. If there is any 
considerable body of ore, 3 feet in thickness, let alone the 6 to 10 feet 
reported, that will yield before calcination from 22 to 27 per cent. of 
iron, as shown in the above quoted tables, the work of iron manufacture 
may be begun immediately, and its success can be guaranteed, so far as 
ore is concerned. No such body of ore was found by the Survey. 
On the other hand, if the Fisher bank fairly represents the blackband 
of this district, then iron-making can not be successfully begun here in 
our day. 
4, Tron Ores or Muskineum, Lickinc, AND NORTHERN 
PERRY COUNTIES. 
This district includes the ores that are tributary to the Zanesville 
furnace, the production, of course, being limited to a certain extent by the 
lines of transportation. Three townships of Muskingum, viz., Jack- 
