1449
177 Mellichamp, Mary If., Charleston ,, South
A basket. _
178 Nailor, J efferson, Vicksburgh } Mississippi .Specimens of cotton.
179 Mitchell, G. D., VicJcsburgh> Mississippi .Specimens of cotton.
180 Maryland Soap-stone Company, Baltimore ,
Specimen of soap-stone. One bath tub. Sample ofstone. One sizing roll. Three griddles.
[Steatite , called soap-stone, on account of its unctuousfeel, is a hydrated silicate of magnesia and alumina. It ismuch more abundant, and more extensively used inAmerica than in England. That found in the quarriesnear Baltimore, Maryland , is of superior quality. It isepiploved for the jambs of fire-places, and in other situa-tions exposed to heat; but one of its most importantadaptations is to the making of sizing rolls for cotton-mills. For this purpose it is now much used in theUnited States . This material i9 almost as readily workedas the soft woods, and with similar tools. It is applied tomany of the purposes of wood, to which, in some cases, itssuperior durability makes it preferable.—S.]
181 James & Chapman, Craioford County , Missouri .Specimens of iron ore and iron work.
182 Stratton, War. J., Glasgow > Howard Cou/nty ,
Specimens of manufactured tobacco.
183 Albro & Hoyt, NHzabethtoivn } New Jersey —
Manufacturers.
Floor oil-cloth.
184 Bryant, William, Nashville, Tennessee —Inventor.Cotton and wool cards
185 Weight, G. W., California —Proprietor.Steam-engine quartz crusher.
[The intention of tins machine is to assist in the extrac-tion of grains of gold dispersed in the quartzsose rock ofthe auriferous districts of California .]
186 Walbbidge, Hiram —Proprietor.
Specimens of gold and other ores.
187 Burt, W. A., Mount Vernon , Macomb County ,
Michigan —Inventor.
Burt’s solar compass.
[The improvements introduced by its inventor tend toraider the instrument more simple in its use and morepermanent in its adjustments.
The method is susceptible of any degree of. accuracydesired. In the model, the principle of reversion isapplied throughout, and serves to remove all danger ofindex-error in any of its adjustments.
In a clear day, in a latitude not yet determined, thisinstrument, without the use of a telescope, is adequate tothe determination of latitude within two minutes, and dif-ferences of latitude perhaps to one minute. The line ofsight being brought in the direction of an object, and theinstrument adjusted for the sun’s actual declination andthe latitude of the place (determined by a previous culmi-nation of the sun with this instrument), the exact azimuthfrom the true north or south is read, and tho reading ofthe compass is of no further use than to serve as a check
to the comparative azimuth determined astronomically,and also to furnish a permanent record of the variation ofthe compass for the particular station. The instrumentis simple in its construction and use; and requires, whenproperly understood, no inconvenient expenditure of time :in districts abounding in magnetic iron ore, it is almostindispensable.]
188 Ewing, J. II., Washington , Pennsylvania —Proprietor.
Specimens of wools.
189 GrEVELOT, —, Philadelphia —Designer.
A medal.
190 Clinton, Edwin, Philadelphia , Pennsylvania .Hair and cloth brushes.
191 Darling, William, Beading , Pennsylvania —
Proprietor.
Specimen of iron, and iron ores.
192 Hopkins, James M,, Brock , Pennsylvania .
Pig of iron.
193 Ragan, William, Philadelphia —Manufacturer.Reclining chairs.
[These chairs are intended for tho use of invalids, andare so constructed that the degree of inclination is regu-lated with facility by the weight of the body. A simpleratchet, under the control of the sitter, confines the chairto the desired angle. The simplicity of the constructionrenders it little liable to get out of order.—S.]
194 Star, Edwin, Philadelphia , Pennsylvania —
Manufacturer.
Forms of printing bank notes and stereotyping.Specimens of the note, and of electrotyping.
195 Dunton, J. H., Philadelphia , Pennsylvania —
Manufacturer.
Red cedar bedstead.
196 Vine & Ashmead, Hartford , Connecticut .Gold-boating machine and gold leaf.
197 Sibley, S., Hopkinton , New Hampshire —Producer.Sample of Saxony wool from the exhibitor’s own flock.[This article is produced from a flock commenced 30
years ago, and great pains and expense have been bestowedto secure purity of blood and quality of wool. Theoriginal stock was the Spanish merino; subsequently, theSaxony breed was gradually substituted. Delicacy ofwool has been the primary object.—S.]
198 Woolman, E., Bamascoville , Ohio —Inventor.
Gate, so constructed as to be opened by a rider without
getting off the carriage seat.
199 Bong worth, Nicholas, Cincinnati , Ohio —
Producer.
Specimens of Catawba and other wines.
200 Schooley & Hough, Cincinnati , Ohio —
Manufacturers.
Samples of hams and shoulders.
201 Pereins & Brown, Akron , Ohio —Producers.Sample of fine combing wool.
5 K 2