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Articles 2071 - 2077 of 2077
Full-Text Articles in Physical Sciences and Mathematics
Glucose From Corn Cobs, Barney Nudelman
Glucose From Corn Cobs, Barney Nudelman
Masters Theses
"The efforts of American chemists in recent years have been devoted largely to the utilization of our waste products...Corn cobs offer a particularly inviting field for research along this line on account of the large supply of cobs available and the variety of substances obtainable from them. One of the leaders in this branch of investigation is Dr. F. B. LaForge of the Chemistry Division of the Bureau of Agriculture, who has contributed numerous papers on the subject. In one of these, in collaboration with C. S. Hudson, he describes, among other things, the preparation of glucose, but recognizes the …
The Hydrogen Ion Concentration In The Liquefaction Of Gelatine, Frederick William Shaw
The Hydrogen Ion Concentration In The Liquefaction Of Gelatine, Frederick William Shaw
Masters Theses
"Gelatine is the most typical of the reversible colloids, a solution containing it being very fluid when hot, but setting to a clear stiff gel on cooling, which again becomes fluid at various temperatures, depending on the concentration of the gelatine"--Introduction, page 1.
Characteristics Of Bacillus Influenzae, Georgena Josephine Clarke
Characteristics Of Bacillus Influenzae, Georgena Josephine Clarke
Masters Theses
"This organism is classed under the type of haemoglobinophilic bacteria, due to the fact that its growth is restricted to a special medium containing haemoglibin [sic]. It is a very small bacillus which in the sputum tends to show itself in aggregations, especially centering about other organisms, M. tetragenus in particular"--page 3.
Methyl Amines From Carbinol And Ammonium Chloride, Arthur Mark Howald
Methyl Amines From Carbinol And Ammonium Chloride, Arthur Mark Howald
Masters Theses
"During the spring of 1919 we undertook to prepare tri-methyl-amine for the Research Department of the Eastman Kodak Company in the Industrial Chemistry Laboratory of the Missouri School of Minds. According to V. Merz and K. Gasiorowski the three methyl amines were qualitatively proven to be present in the reaction products obtained by heating methyl alcohol, ammonia and zinc chloride to 220°C. in a bomb for fourteen hours. As these raw materials are inexpensive we attempted to prepare the tri-methyl-amine by this reaction employing for the purpose a small industrial autoclave. Methyl amines were obtained by the yield especially of …
Some Chemical Problems In Geology, Reginald Scott Dean
Some Chemical Problems In Geology, Reginald Scott Dean
Masters Theses
"This thesis is in the main a compilation of the views held at this institution in regard to the problems discussed as interpreted by the author. No claims for originality are made except in the manner of presentation as the material used has been obtained by conference and class room work with Professor V. H. Gottschalk and Professor G. H. Cox and also to some extent with H. A. Buehler, State Geologist. On the other hand the material is an expression of these ideas as assimilated by the author and hence may in certain cases differ radically from the views …
A Study Of The Precipitation Of Iron Di-Sulphide And Its Relation To Certain Types Of Deposits, Vachel Harry Mcnutt
A Study Of The Precipitation Of Iron Di-Sulphide And Its Relation To Certain Types Of Deposits, Vachel Harry Mcnutt
Masters Theses
"Very few of the interesting points bearing upon the formation of iron di-sulphide will be treated in this paper. The laboratory tests made are considered to have been sufficiently thorough to substantiate the ideas set forth so that exhaustive tests were not necessary. While the field evidence was collected largely in the Joplin district of Missouri, the conclusions are sufficiently generalized to be applicable to any district in which pyrite and marcasite have been derived from cold solutions"--page 2.
The Determination Of Aluminium, Victor Hugo Gottschalk
The Determination Of Aluminium, Victor Hugo Gottschalk
Masters Theses
No abstract provided.