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Agnes B. Laidlaw described her daily activities in New York City from February 11, 1896, to June 20, 1896, in her diary. She frequently discussed her love of painting, social life, and thoughts about romantic love.

In her diary (125 pages), Agnes B. Laidlaw described her daily activities in New York City from February 11, 1896, to June 20, 1896. She composed daily entries between February 11 and June 7, and one additional entry on June 20. Laidlaw lived in Manhattan's Upper West Side, where she attended dinner parties, dances, and other events. She commented on her acquaintances, which included both men and women, and recorded her thoughts about romantic relationships and love (such as her discomfort with second marriages, June 6, 1896, pp. 121-122). On March 9, she recalled meeting a man on a streetcar, to whom she found herself instantly attracted (pp. 30-31). Laidlaw wrote about her fondness for painting and her attendance at French classes. Her social activities included visits to restaurants, concerts, and other performances. On one occasion, she hosted a dinner party, and her diary includes a diagram of attendees' positions at a table (May 14, pp. 87-89). The first 2 pages contain reminiscences about Laidlaw's childhood.

This collection is made up of a letter, drawings, maps, and newspaper clippings related to David Wyrick's discovery of inscribed stones in a Native American burial mound near Newark, Ohio, in 1860.

This collection is made up of a letter, drawings, maps, and a newspaper clipping related to David Wyrick's discovery of inscribed stones in an Indian burial mound near Newark, Ohio, in 1860. The items were once bound together under the title "Hebrew Inscriptions alleged to have been dug up in Ohio, U.S.A." Wyrick wrote an 8-page letter to William Brockie, editor of The Sunderland Times, on September 8, 1860, about his archaeological exploits. He recounted his actions on June 29, 1860, the day of his discovery, describing the Newark burial mounds and the Hebrew-inscribed "Keystone" he discovered there. Wyrick addressed the possibility that he had been the victim of a hoax, but ultimately expressed his belief that the stone was a genuine ancient artifact, possibly a relic of one of the Lost Tribes of Israel. His letter also refers to the draining of a nearby artificial pond, the durability of the logs located on its floor, and the discovery of several skeletons in a burial mound.

Wyrick's letters contain references to enclosed drawings and maps (which are present in the collection). Four colored drawings include two- and three-dimensional views of each of the Keystone's four inscribed faces, a diagram of the burial mound where Wyrick unearthed the artifact, and a cross-section of a mound containing several skeletons. Three of the manuscript maps are overhead views of the Newark earthworks, including copies of maps by Caleb Atwater (1820) and Squier and Davis (1848), and Wyrick's own detailed map (1860). A final manuscript map is a view of an artificial lake near Utica, Ohio (undated). Some of the visual materials have lengthy captions written on the verso.

The final items in the Wyrick collection are two newspaper clippings published in The Sunderland Times on October 6, 1860, regarding the Wyrick excavation. One article reprints several lengthy quotations from Wyrick's letter to William Brockie, and the other contains translations of the stone's Hebrew inscriptions.

This volume contains an introduction to land surveying and its underlying mathematical principles. Included are practical problems, illustrated examples, and reference tables.

This volume (174 pages) contains an introduction to land surveying and its underlying mathematical principles. Included are practical problems, illustrated examples, and reference tables.

The book, entitled "Land Surveying," opens with an introduction to geometry and trigonometry then focuses on practical surveying applications (around p. 49). Definitions, theorems, and problems are illustrated with diagrams and example problems. The remainder of the volume (pp. 142-174) pertains to surveying measurements, methodology, and tools. The author explained different measurements, such as Scottish units, English units, and the "chain," and applied mathematical principles to surveyors' practices. Many problems include ink-and-watercolor pictures of irregularly shaped lakes or fields, and several concern locations referred to as "Broom Park," "Mire Park," "Farm Park," and "Hill Side Farm." Additional subjects of study are land division and measuring levelness. The volume also contains tables of measurements. Decorative geometric drawings, done in ink with the occasional addition of watercolors, are interspersed throughout the book.

This volume, compiled in the 1820s, contains an encyclopedia article, extracts and writings, diagrams, tables, and newspaper clippings pertaining to the design and construction of canals.

This volume (450 pages), compiled in the 1820s, contains extensive information on the design and construction of canals. The first few pages include a manuscript subject index. Pages 1-155 consist of a printed encyclopedia article about canals, bound directly into the volume. Other articles and fragments of articles are included, including the entire entry for "Canada."

The remaining pages consist of manuscript extracts, writings, and notes about canals, illustrated with colored diagrams and drawings. The volume includes sections about types of locks; tunnels; drawbridges; excavation; building materials, labor, and costs; water supply; the effects of rain and evaporation on canals; and hydraulics. Sections focus on canals in the United States, England, Wales, and France. The manuscript contains tables of data about the number and length of canals in each country. Specific structures, such as the Ohio & Chesapeake Canal, Union Canal, and Erie Canal are described and used as examples throughout the text. Illustrations include diagrams of locks, tunnels, and canals; a depiction of a method for burrowing out soil using a horse and several workers (p. 370); and a map of France highlighting its canals (p. 424). Notes, newspaper clippings, and additional drawings are laid into the volume.

The Zaccheus Brown notebook contains information compiled between 1782 and 1783 on arithmetic, sailing and navigation, and surveying, as well as a log of the Phoenix's voyage from New Jersey to the Virgin Islands in 1789. Mathematical and navigational problems are often illustrated with diagrams, and the volume also contains an example of a Mercator chart of the Caribbean.

The Zaccheus Brown notebook (175 pages) contains information on arithmetic, sailing and navigation, and surveying, as well as a log of the Phoenix's voyage from New Jersey to the Virgin Islands in 1789.

The first 112 pages, compiled from 1782-1783, are comprised of information about mathematics and sailing and contain a brief ship's log. Mathematical subjects include square and cube roots, geometry, and plane trigonometry; Brown copied and solved mathematical problems, which are often illustrated with diagrams. Instructions for aiming cannons appear in the section about trigonometry. Brown also described sailing methods such as plane, traverse, oblique, Mercator, parallel, middle latitude, and current sailing, as well writing instructions for turning a ship windward and for determining location. The parts of the volume concerning sailing also contain problems, diagrams, and an example of a "Plane Chart" and "Mercator's Chart." The Mercator's chart shows the locations of islands in the northern Caribbean Sea. The notebook's other subjects include the compass, calculating the phases of the Moon, and the Gregorian calendar. A final section pertains to surveying.

Zaccheus Brown's notebook also contains logs concerning the voyage of the Endeavour (9 pages) and the schooner Phoenix (58 pages). The Endeavour log, attributed to "L. H," notes the ship's journey "from the Cape" in late June and early July 1783. The Phoenix log details Brown's voyage from June 17, 1789-September 1, 1789 from Salem, New Jersey, to the Virgin Islands and back to Virginia. Some of Brown's daily entries about his voyage on the Phoenix include charts recording the ship's course and position, along with additional remarks on wind speed and direction. Brown occasionally discussed other aspects of his voyage, such as the pidgin language spoken by the ship's Dutch crew and his premonitions after bad weather and delays. He also described the port and the island of Saint Thomas, a Dutch colony (currently part of the United States Virgin Islands).

The volume contains illustrations of a man in the sun, a compass rose, and a fish and man; the latter drawings are flourishes on the heading for the section of the book on cube roots. The back endpaper includes a table of angles related to navigation.