earth science

Nitre and Mining Bureau

Nitre and Mining Bureau is a earth science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Nitre and Mining Bureau rather than just read about it. In short: The Confederate Nitre and Mining Bureau was a civilian government bureau to provide the Confederate States of America with needed materials such as copper, iron, lead, saltpeter, sulfur, zinc, and other metals. The Bureau oversaw civilian contracts and offered advice, instruction and guidance in the production of these materials.

Key takeaways

Nitre and Mining Bureau belongs to earth science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Nitre and Mining Bureau to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Nitre and Mining Bureau from memory before moving on to harder problems.

Reference excerpt

The Confederate Nitre and Mining Bureau was a civilian government bureau to provide the Confederate States of America with needed materials such as copper, iron, lead, saltpeter, sulfur, zinc, and other metals. The Bureau oversaw civilian contracts and offered advice, instruction and guidance in the production of these materials. The Nitre and Mining Bureau was also known as the "CSNMB", the "Bureau of Nitre" or the "Nitre Bureau". The Niter and Mining Corps was the military division of the Bureau. The Nitre and Mining Bureau was part of the Confederate Ordnance Department, under the supervision of General Josiah Gorgas. The Nitre and Mining Bureau was supervised by General Isaac M. St. John. The Central Ordinance Laboratory was headed by John Mallet.

Personnel The Act establishing the Nitre and Mining Bureau by the Confederate Congress stated: "That said bureau shall consist of one lieutenant colonel as superintendent, three majors as assistant superintendents, six captains and ten lieutenants, in which shall be included the officers of the present nitre corps, who shall have the same pay and allowances prescribed for officers of cavalry of the same grades." General Isaac M. St. John was subsequently made the superintendent of the bureau. Other individuals involved with or associated with the Nitre and Mining Bureau included George Washington Rains, Joseph LeConte, Nathaniel Thomas Lupton, Richard Sears McCulloh, George Washington Helme, and Thomas Edgeworth Courtenay.

Saltpeter The Nitre and Mining Bureau is most known for their production of saltpeter (potassium nitrate) for the Confederacy. Because of the blockade of Southern ports, imported supplies of gunpowder and materials were kept away from the Confederacy, and had to be supplied within their own borders. Priority was given to the manufacture of gunpowder. The Secretary of War for the Confederate States said: "That Military commanders are directed and officers of the Niter Bureau are authorized to seize niter in the hands of private individuals who either decline to sell it or ask more than 50 cents per pound for it.... All quartermasters are directed to give precedence in transportation to niter over all other Government stores. Richmond, April 15, 1862." Civilian production of saltpeter was encouraged by small farm holders, tobacco and livestock owners, from cave dirt and other resources.

Barn dirt Several pamphlets were printed by the Confederate Nitre and Mining Bureau to explain how loose dirt from ricks, smoke houses, barns and tobacco curing buildings could be treated to extract the nitrates.

Cave dirt

Cave dirt was mined to produce calcium nitrate, which would be combined with potash to create potassium nitrate, a needed ingredient of gunpowder. Lookout Mountain Caverns, the Morrell Cave in Sullivan County, Tennessee, Nickajack Cave, Organ Cave and Selma, Alabama's limestone caves all supplied nitrates for the Nitre and Mining Bureau.

Nitre beds

Joseph LeConte, a professor of chemistry and geology at South Carolina University, wrote a pamphlet for the Nitre Bureau on the process for the manufacture of saltpeter in 1862. Nitre beds were constructed of a clay floor, well rammed, that was impervious to water, but with a drain to remove the fluids. Then black earth was added to a raised bed over this floor, made of dark manure. Twigs, leaves and other elements were added to create air passages and porosity through the dirt. A shed would be built around and over the heap to protect it from wind and rain. "The heap is watered every week with the richest kinds of liquid manure, such as urine, dung-water, water of privies, cess-pools, drains, &c." As the heap ripens, the saltpeter is brought to the surface.

Night soil

Desperate for saltpeter necessary for the making of gunpowder, the Confederacy sent out agents around the South to collect deposits of "night soil", i.e. human excrement. John Haralson, an agent in Selma, Alabama of the Confederate Nitre and Mining Bureau, advertised the following in the local paper: "The ladies of Selma are respectfully requested to preserve the chamber lye [i.e. urine] collected about their premises for the purpose of making nitre. A barrel will be sent around daily to collect it."

Gunpowder works The Confederate Powderworks in Augusta, Georgia, was used to manufacture gunpowder from the saltpeter, charcoal and sulfur produced by the Confederate Nitre and Mining Bureau.

Iron production The Nitre and Mining Bureau was responsible for the mining, refining and production of iron. Because the production of iron was so important, the Bureau sent out information on the need to enforce the existing contracts with civilian companies and individuals.

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Nitre and Mining Bureau

Start with the simplest possible case. Write down what Nitre and Mining Bureau claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In earth science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Nitre and Mining Bureau before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Nitre and Mining Bureau ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Nitre and Mining Bureau

In research: Nitre and Mining Bureau appears in earth science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Nitre and Mining Bureau in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Nitre and Mining Bureau is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1862 establishments in the Confederate States of America, Gunpowder, History of mining in the United States, so understanding it makes those chapters shorter.
In everyday life: Look for Nitre and Mining Bureau outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Nitre and Mining Bureau in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Nitre and Mining Bureau means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Nitre and Mining Bureau out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Nitre and Mining Bureau in simple terms?

Why does Nitre and Mining Bureau matter?

Because it connects several earth science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Nitre and Mining Bureau?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Nitre and Mining Bureau.