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The Relation Of The Composition Of Petroleum To Its Origin And Occurrence, John Warder Shotwell

Bachelors Theses

"Petroleum Is a mixture of hydrocarbons. It is a liquid varying from colorless, through yellow and brown to black. It varies from 1.0 to 0.80 in specific gravity, which corresponds to 10° to 45° Beaume. It varies widely in physical properties, such as viscosity, ignition point, polarization of light, etc. Chemically it is composed essentially of carbon and hydrogen, but usually contains impurities such as sulphur and nitrogen. The carbon and hydrogen combine with each other to form certain series, or "chains"--Chemical and Physical Nature, page 1.

The Chemical Constituents Of Cast Iron And Their Effect On Its Physical Properties, Frank H. Paatsch

Bachelors’ Theses

Carbon is an element of great importance and very - extensively diffused in nature. It exists in large quantities in the mineral kingdom and is the most abundant constituent of animal and vegetable matter. It assumes a greater number of aspects than any of the elements we deal with in connection with iron. In the crystallized state it constitutes the diamond and more or less pure, it forms the substance called plumbago, graphite, black-lead, anthracite and bituminous coal, coke, animal and vegetable charcoal.

The Determination Of Oils In Limestone, Claude Calvin Cushwa

Bachelors Theses

"The purpose of this work has been to establish the occurrence or the non-occurrence of petroleum in certain limestones. The results of this work, if oil were proved to exist, would have a direct bearing on the theories of the origin of oils"--Introduction, page 1.

De Re Metallica, Translated From The First Latin Edition Of 1556, Georgius Agricola

Rare Books

No abstract provided.

The Determination Of The Electrical Resistance Of The Human Body Under Conditions To Be Met Within Underground Mining, Duncan S. Smith, Paul E. Coaske

Bachelors Theses

"The use of electric wires in mines for power purposes is dangerous to human life. Deaths occur every year from electric shocks, and in most cases these accidents could have been prevented if some precaution had been taken by the victims, or if some care had been taken to protect them from coming in contact with live wires. Most workingmen accustomed to working around electric wires become careless and a lack of knowledge of the danger involved gives rise to the many accidents that occur each year...The object of this investigation is to determine just what resistance the human body …

The Development Of The Minneapolis Sewer System, Andrew Rinker

Journal of the Minnesota Academy of Science

No abstract provided.

Description Of The Surveys Of Portions Of The South And East Boundaries Of The Yellowstone National Park, Albert Babbitt Bartlett

Professional Degree Theses

"This Thesis will be generally descriptive of the points connected with obtaining the contract under which this survey was made, the outfit necessary for the part doing the work, the personnel of the party, and the duties of each man, the engineering instruments employed in the survey, the country through which the Boundary lines run and the difficulties encountered, the writing of the field notes, and is accompanied by illustrations"--Introduction, page 6.

Neutralization Of Free Acid (H₃P O₄) In Commercial Mono-Calcium Phosphate (Ca H₄ (Po₄), George William Harris, Harry Adam Grine

Bachelors Theses

"The object of this thesis has been a systematic research based on the characteristic properties and reactions of mono-calcium phosphate, Ca H₄ (PO₄)₂, tending towards the development of a process for neutralizing the free phosphoric acid, H₃PO₄ formed during its manufacture"--page 1.

Prospecting In Western Mexico, Theodore S. Delay

Professional Degree Theses

"This article is dedicated and addressed to any man who contemplates a prospecting expedition in Mexico. I have made no attempt at a display of literary elegance, or scientific erudition. My aim has been to point out and explain such of the conditions of the business as are peculiar to Mexico. If any one, after having perused these pages, should find himself thereby the better able to cope with the difficulties of such an expedition, a rather unprofitable experience of the writer will have been not wholly fruitless"--page 31.

Extraction Of Silver By The Wet Way, Justo Garcia Martinez

Bachelors Theses

"The great variety of ores in which silver occurs, usually makes it necessary to employ complicated processes for its extraction.

The extraction of the precious metal admits of two general processes viz. The Dry, and Wet Way and as I have chosen the latter for the subject of my thesis, we will be dispensed with the Dry Way, and will try and give all the processes and forms in which silver is extracted by the Wet Way"--page 1.

The Voice Of The Phi Sigma -- 1881 -- Volume 03, No. 13, Phi Sigma

The Voice of the Phi Sigma

This item is part of the Phi Sigma collection at the College Archives & Special Collections department of Columbia College Chicago. Contact [email protected] for more information and to view the collection.