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Breve Trattato di Geografia is a 55-page, 17th-century Italian work on celestial and terrestrial geography, including several maps and diagrams of the world. Assistant Curator of Maps Mary Pedley transcribed and translated the 2-page index that follows the text of the volume: Breve Trattato di Geografia Index .

Breve Trattato di Geografia is a 55-page, 17th-century Italian work on celestial and terrestrial geography, including several maps and diagrams of the world. The treatise is divided into four primary sections and, within them, individual chapters. Early chapters in the book mention the zodiac and celestial features, while later chapters focus on the world's landmasses and degrees of latitude and longitude. The latter half of the volume contains several hand-drawn maps that depict the contemporary view of the world on several scales and according to different projections. One map of the world shows North and South America and "Terra Australe Incognita," while another map of North and South America is labeled "Mexicana" and "Peruana," respectively. Azimuthal projections of Africa and Asia and of the northern hemisphere and a map of Italy showing the location of Rome are also included. Assistant Curator of Maps Mary Pedley transcribed and translated the 2-page index that follows the text of the volume: Breve Trattato di Geografia Index (.pdf).

This Flavius Vegtius Renatus Epitoma rei militaris manuscript was produced circa twelfth century on vellum.

Epitoma rei militaris. [Incipit] Flauij. vegetii. renati. viri illustris epitoma instituto rei militaris. de cōmentarijs catonis augusti. Traiani. adriani. et erumptorii [i.e. Frontini] Libri numero. iiii.

This Flavius Vegtius Renatus, Epitoma rei militaris manuscript was produced circa 12th century on vellum. It is 63 leaves (plus 2 blank), with small characters; the titles of books and chapters are in red, and some capitals are drawn in red or green. This copy was executed in Europe (likely Northern France or England). The first leaf contains the name "Sir Simeon Stuart Bart." (18th century). A fragment of a contemporary manuscript (1 leaf at the beginning and 1 at the end) was supplied for protection. The binding is 19th century brown morocco, blind tooled, with gilt edges, by W. Pratt.

The treatise is divided into four books, concerning army reform, the duties of soldiers and officers, military maxims, fortifications and sieges, and naval matters.

The Practical Mathematics manuscript contains definitions and problems related to algebra, geometry, trigonometry, navigation, and surveying. Many of the problems are accompanied by illustrated figures and/or practical examples.

The Practical Mathematics manuscript contains definitions and problems related to algebra, geometry, trigonometry, navigation, and surveying. These categories are divided into specific applications; the section on algebra deals with topics such as basic algebraic statements, algebraic fractions, simple and quadratic equations, and arithmetical and geometrical progressions. Most of the problems are accompanied by illustrated figures and/or examples of concepts' practical applications. A section concerning globes pertains to both terrestrial and celestial globes, and includes a list of the signs of the zodiac, as well as descriptions of navigational methods, accompanied by a compass rose and charts, including "Mercator's Charts."

The manuscript also explains methods for determining location and time by observing celestial objects, and contains instructions for keeping ships' logs and surveying notes. A section on navigation includes a copied log from the voyage of the Pegasus from England to Barbados (January 31, 1737-March 22, 1737), as well as a map showing the coasts of France and Spain and the islands around Barbados. Some of the surveying problems are illustrated with a sailing ship, a tree, and a turret.

• Algebra
  • Simple Equations
  • Quadratic Equations
  • Arithmetic Progressions
  • Geometric Progressions
• The Use of Globes
  • Terrestrial Globe
  • Celestial Globe
• Spherical Geometry
• Spherical Trigonometry
  • [Acute] Angled
  • Right Angled
  • Oblique Angled
• "To Find the Prime or Golden Number"
• Geometry
• Trigonometry
  • Plain Trigonometry
  • Spherical Trigonometry
• Navigation
  • Latitude
  • Longitude
  • Sailing
    • Plain Sailing
    • Traverse Sailing
    • Mercator's Sailing
    • Parallel Sailing
    • Oblique Sailing
    • Plain Sailing by Arithmetic
• Observation by the Meridian Altitude or Zenith Distance of the Sun or Stars
• Rules for Keeping a Journal [Ship's Log]
• Astronomy
• Dialing
• Surveying
• Mensuration
  • Mensuration of Superficies
  • Mensuration of Solids
  • Measuring of Timber

This volume contains excerpts from correspondence, reports, and treatises concerning the relationships between the United States, Great Britain, France, and Spain during the Revolutionary War era. Two of the five excerpts originated from letters written by Silas Deane, an American agent in France; the other three narrate Benjamin Franklin's dealings with the French court, report on the British Army's finances, and analyze available options for amphibious military action. A later owner added brief biographical notes on the key Americans referenced within the volume.

This volume (117 pages) contains excerpts from correspondence, reports, and treatises concerning the relationships between the United States, Great Britain, France, and Spain during the Revolutionary War era. The first two segments (pp. 1-8 and pp. 9-33) are extracts of "intercepted letters" from Silas Deane to Brigadier General Samuel Holden Parsons (May 14, 1781) and Robert Morris (June 10, 1781) concerning diplomatic relations between the United States and the three major Continental powers (England, France, and Spain). Deane concentrated on the possible motives of France in assisting the American rebellion, noted the historical animosity between France and Great Britain, and shared his suspicion that France merely wished to see Great Britain's power diminished. He also questioned Spain's supposed neutrality and urged Parsons and Morris to consider reconciliation with Britain. The second letter focuses heavily on economic arguments, while the first primarily considers international politics and power relations.

The next excerpt is a third-person account of "Doctor Franklin's representations to the Court of France" (pp. 34-37), which recounts the American response to a recent French proposal. The summarized response cites the United States government's continuing desire to achieve full independence from Great Britain and its reluctance to accept the presence of large international military forces on its soil. Franklin also discussed French loans to the United States and reported his responses as the wishes of the United States Congress. The fourth, and lengthiest, excerpt, entitled "Extracts from the seventh report of the Commissioners of Public Accounts" (pp. 38-82), reflects the finances of British forces in North America from January 1, 1776-December 31, 1781. The report, issued on June 18, 1782, and later published, discusses funding for "extraordinary services of the Army" and notes specific amounts of money owed and supplies used during the Revolution.

The final essay, entitled "On Conjunct Expeditions" (pp. 83-114), discusses Great Britain's naval strength and posits a possible strategy for amphibious warfare combining infantry and naval forces. The treatise mentions several previous battles and examples and considers the drawbacks and benefits of these tactics. The essays are followed by brief biographies of Silas Deane, Samuel Holden Parsons, Robert Morris, and Benjamin Franklin, adapted from A Universal Biographical Dictionary, Hartford. S. Andrews & Son, 1856 (pp. 115-117).

This 238-page volume contains an unknown writer's opinions on the Revolutionary War and proposed military strategies, composed September-October 1776 and February 1778. Among other topics, the author discussed the relationship between land and naval forces and their relative strengths, explained possible ways in which economic affairs might affect the progress of the war, and promoted a strategy of dissolving the unity of the colonies. This volume belonged to Henry Dundas, 1st Viscount Melville, and includes his bookplate.

This 238-page volume contains an unknown writer's opinions on the Revolutionary War and proposed military strategies, composed September-October 1776 and February 1778. Among other topics, the author discussed the relationship between land and naval forces and their relative strengths, explained possible ways in which economic affairs might affect the progress of the war, and promoted a strategy of dissolving the unity of the colonies.

The volume is divided into two primary sections, with the author offering his thoughts on the war in late 1776 (pp. 1-146) and in early 1778 (pp. 147-238). Introductory remarks at the beginning of the first section suggest that the author intended his treatise for members of the British government. He focused on financial and economic affairs, such as the colonies' different currencies, the effects of privateering, and the difficulty of funding a war. In addition, he presented detailed proposals for British action, often revolving around a strategy of dissolving the colonies' confederacy. Some suggestions focused on specific cities or colonies.

The second section of the volume contains similar thoughts and strategies, with a focus on the differences between land and sea power. Though the author believed a British victory unlikely, he encouraged the government to focus on naval actions rather than land forces. Despite his skepticism, he concluded by affirming that the rebellion could be defeated by disrupting colonial unity and conquering Georgia by military force.

This volume belonged to Henry Dundas, 1st Viscount Melville, and includes his bookplate.

This student notebook contains Latin-language treatises on logic, metaphysics, and related subjects, composed around 1720. The book also includes a few pages of sermon notes, an example of a Porphyrian Tree, and additional notes by later owners.

The bulk of this volume is comprised of Latin-language treatises about logic, metaphysics, and related concepts, written or copied around 1720. Each section is broken into multiple chapters, some with appendices. The volume also includes small groups of shorter writings in Latin and an example of the Porphyrian Tree. The Latin writings are infrequently interrupted by additional entries, such as a few pages of English-language notes from an August 1761 sermon based on a verse from 2nd Corinthians. Notations throughout the volume refer to William Potts, Georgius M. Conchie, George Potts, and William McCauly (with several variations on the spelling of the surname).