Part I. Report of progress in 1869, by J. S. Newberry, chief geologist. Part II. Report of progress in the second district, by E. B. Andrews, assist. geologist. Part III. Report on geology of Montgomery County, by Edward Orton, assist. geologist.

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DIRECTIONS FOR OBSERVING AND COLLECTING.
1. TOPOGRAPHY.-NOte a.-Altitudes of important points, by barometer, or by reference to railroad or canal levels.
b.-Topographical features and cause of ditto.
c.-Get railroad or canal profiles wherever possible.
2. SOIL.-Note character (sand, clay, loam, muck, wet, dry, &c.), depth,
origin, relations to underlying rock.
3. VEGETATION.-Note nature of vegetation and its relation to soil
and geological structure.
4. SURFACE GEOLOGY te a.-Nt — Superfial Materials (clay, sand,
gravel, &c.), of local or foreign origin? stratified? thickness' fossils
b. —Glacial Surface- planed? scratched? farrowed direction of furrows?
c.-Terraces and Lake Ridges. —Composition, extent, altitude.
d.-Peat Bogs and Marl Beds; under former or present marshes. To
be sought by boring. Fossils are elephants, mastadon, &c.
e.-Depth of rock-bottoms of valleys and stream beds. Often 100 to
200 feet below present streams.
5. GEOLOGICAL STRUCTURE.-Note lithological character, thickness,
subdivisions, faults, dip, strike and fossils of each stratum. Trace geology on map., Take sections and sketches.
6 ECONOMIC GEOLOGY. —Note-Iron Ore-Coal-Clay-Peat-MarlManganese-Phosphate of Iron-Infusorial Earth-Glass Sand-Building Stones-Stone for flagging, paving, furnace hearths.-LimestonesHydraulic Limestones-Gypsum-Petroleum, (Wells, Springs, Sections
of Wells)-Mineral Springs-Salt Springs, Licks, Wells-Gas SpringsMineral Paint-Calcareous Tufa-Water Supply, Springs, Wells, (Sections of Wells)-Note quality, quantity and accessibility of all of the
above economic minerals met with. If mined or manufactured, the quantity or quality of the mined or manufactured article.
7. INDIAN RELICS-Note mounds, earthworks, inscriptions-Excavate
and survey-Collect, arrow-heads, axes, spears, pottery, &c.
8. MANUFACTURES (of Mineral Staples).-Note, source, quality and
cost of material-Quantity, quality and price of product-Construction
of works-Statistics of 1868, 1869. Get suits of raw and manufactured
materials.
10. MINES.-Note geographical position and accessibility-kind, quantity and quality of product-plan of mines and works.
11. COLLECTING SPECIMENS. - Of rocks of each formation and important stratum-with and without fossils-collect ten sets 3x4x1 inch.
Coal, iron ore, clay, &c., 3x4x1 inch. Fossils, as many good ones as possible.
Label or number each specimen in the field. Wrap in soft paper; pack
in boxes, if possible of not over two cubic feet capacity, flat specimens on
edge. Fill the box. Tack on addressed card, with district, locality and
number of box, and name of collector. Ship by express or freight, taking
receipt.
SKETCH OF THE GEOLOGICAL STRUCTURE OF OHIO.
The general results of our summer's work upon the geological structure of the State, are given in the map and section now published. In
the section are represented all the formations yet recognized in the State,