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Location, Construction, And Drainage Of Common Roads, Edward B. Summers Dec 1880

Location, Construction, And Drainage Of Common Roads, Edward B. Summers

Bachelors Theses

To write upon, and do justice to the subject of common roads, it is necessary that one should be familiar with every variety of them. The roads in some of the advanced and highly civilized communities are of a most admirable character; while in the new and thinly populated countries, they are found deficient in nearly all the attributes of good roads. Only a few kinds that may be in some of the most populous districts will be here designated.


The Production Of Spelter From Zinc Blende, Lee R. Grabill Jan 1878

The Production Of Spelter From Zinc Blende, Lee R. Grabill

Bachelors Theses

"The problem which has been assigned to me for discussion as examination in metallurgy, is the treatment of a zinc blende from Sevier County, Arkansas; using the common Missouri or Illinois coal for fuel and the Spadra coal of Johnson County, Arkansas, as a reducing agent in the distillation process; and as clay for the manufacture of retorts, etc. that from the works at Cheltenham, Missouri, furnished by Parker, Russell & Company. Analysis of the materials used are to be given with details of processes and drawings & descriptions of machinery used; also approximate cost of furnaces, and approximate cost …


Metallurgy Of Gold, Wilton R. Brown Dec 1877

Metallurgy Of Gold, Wilton R. Brown

Bachelors Theses

"Metallurgy of Gold: Problem

Required, description of processes and machinery used in Extraction of Gold (and Silver) from earthy or siliceous ores as found in California

Ores represented by following:--SiO₂ 91.44; S(Zn,Pb)-Cu₂S 1.38; Al₂O₃, FeO &c 6.39; Au .0017, Ag₂S .12, variable in 1st and 2nd class ores

1⁰--The methods &c. employed in treating 1⁰ class ore (i.e. such as exceed in value $150 per ton)

2⁰--The methods &c. in treating 2⁰ class ore, such as contain less than $150 per ton.

Give in detail the chemistry of each process described; also illustrated by drawings of machinery for …


Maramec Bridge, Thomas H. Millsaps Dec 1876

Maramec Bridge, Thomas H. Millsaps

Professional Degree Theses

"Bridge-building, as a science, is comparatively of recent date, for relating to now, of what may be called ancient bridges, do we read of them having been mathematical calculations, determining the strains upon the constituent parts of the bridge structure. This very necessary operation seems to have been entirely omitted. This was, probably, because to that time, there had been no thoroughly scientific investigation, of the new and beautiful subject of scientific bridge-building. At the present time, we determine with a minuteness the strain thrown upon any part of a bridge. We are thus enabled to give the proper dimensions …