A catalogue of books [donated by Jasper Mauduit] in the library of Harvard College [at]: Cambridge in New England, 1765

This leatherbound volume lists books donated to the Harvard College Library by Jasper Mauduit, who served as an agent in London on behalf of the Province of the Massachusetts Bay. Entries are arranged alphabetically and by format; i.e. the first page lists all folios whose author, title, or keyword begin with "A," the next page lists all quartos beginning with "A," and the following page lists all "octavo &ca" volumes beginning with "A." The volume continues in a similar manner for each letter of the alphabet. Following a devastating fire in 1764 which destroyed most of the books in the Harvard College Library, Mauduit donated books, as well as money for the purchase of books, to the College. He also acted as an agent of the Society for Propagating the Gospel in New England and Parts Adjacent, using the £300 they donated for the rebuilding of the College library to select and purchase a large number of books. It is not known if the books listed in this catalog are those donated by Mauduit himself, or if they are the donations he purchased on behalf of the Society. The creator of this volume is unknown; although all entries are made in the same hand, the identity of the writer has not been determined. The label attached to the front cover, which refers to the Lime Street address of Mauduit's business in London, suggests that the list might have been prepared by Mauduit himself.

Thaddeus Mason Harris' working documents regarding subject-based library catalog, ca. 1790

Thaddeus Mason Harris, who served as interim librarian of the Harvard College Library in 1787 and as its librarian from 1791 through 1793, is believed to have created these notes while helping compile the library's first printed subject-based catalog. The catalog, Catalogus Bibliothecae Harvardianae Cantabrigiae Nov-Anglorum, was published in 1790 and represented a significant change in approach to the cataloging of the library's collections, which had formerly been cataloged alphabetically. These documents, many of them on small scraps of paper, contain the titles and bibliographic information of books on a range of topics, from "Anatomici" to "Rhetorica."

A collection of autograph letters and original documents relating to the Island of Barbados in the 18th century, ca. 1730-1778

A miscellaneous collection of letter and legal documents relating to Barbados, especially prize causes, inheritance and slaves.

[Calligraphic specimen, early to mid 18th century].

Exquisite album of calligraphy (muraqqaʻ or murakkaa) comprising kıt'alar employing ḥadīth of the Prophet executed by the celebrated Ottoman calligrapher Eğrikapılı Mehmet Râsim Efendi (d.1756), renowned student of Seyyid Abdullah of Yedikule (d.1731).

A bibliography of early secular American music <18th century>

Mode of access: Internet.

An 18th century understanding of migraine - Samuel Tissot (1728-1797)

During the period 1778-1780 the Swiss physician Samuel A A D Tissot (1728-1797) published his Traite des nerfs et de leur maladies, a work which continued to be available and widely influential until at least the middle of the following century. It contained a long chapter dealing with migraine, based on the earlier literature on the topic and on Tissot's own clinical experience. The work appeared at the beginning of the modern era of interest in migraine, and provided the first reasonably adequate and systematic account of the disorder to become widely available. Its descriptions of migraine phenomena have an enduring validity, though Tissot's ideas on the pathogenesis of the disorder, viz. that it usually arose from stomach disturbance, were not founded on satisfactory evidence and are long since superseded. (C) 2003 Elsevier Science Ltd. All rights reserved.

Reconstructions of past climates from documentary and natural sources in Finland since the 18th century

In this paper both documentary and natural proxy data have been used to improve the accuracy of palaeoclimatic knowledge in Finland since the 18th century. Early meteorological observations from Turku (1748-1800) were analyzed first as a potential source of climate variability. The reliability of the calculated mean temperatures was evaluated by comparing them with those of contemporary temperature records from Stockholm, St. Petersburg and Uppsala. The resulting monthly, seasonal and yearly mean temperatures from 1748 to 1800 were compared with the present day mean values (1961-1990): the comparison suggests that the winters of the period 1749-1800 were 0.8 ºC colder than today, while the summers were 0.4 ºC warmer. Over the same period, springs were 0.9 ºC and autumns 0.1 ºC colder than today. Despite their uncertainties when compared with modern meteorological data, early temperature measurements offer direct and daily information about the weather for all months of the year, in contrast with other proxies. Secondly, early meteorological observations from Tornio (1737-1749) and Ylitornio (1792-1838) were used to study the temporal behaviour of the climate-tree growth relationship during the past three centuries in northern Finland. Analyses showed that the correlations between ring widths and mid-summer (July) temperatures did not vary significantly as a function of time. Early (June) and late summer (August) mean temperatures were secondary to mid-summer temperatures in controlling the radial growth. According the dataset used, there was no clear signature of temporally reduced sensitivity of Scots pine ring widths to mid-summer temperatures over the periods of early and modern meteorological observations. Thirdly, plant phenological data with tree-rings from south-west Finland since 1750 were examined as a palaeoclimate indicator. The information from the fragmentary, partly overlapping, partly nonsystematically biased plant phenological records of 14 different phenomena were combined into one continuous time series of phenological indices. The indices were found to be reliable indicators of the February to June temperature variations. In contrast, there was no correlation between the phenological indices and the precipitation data. Moreover, the correlations between the studied tree-rings and spring temperatures varied as a function of time and hence, their use in palaeoclimate reconstruction is questionable. The use of present tree-ring datasets for palaeoclimate purposes may become possible after the application of more sophisticated calibration methods. Climate variability since the 18th century is perhaps best seen in the fourth paper study of the multiproxy spring temperature reconstruction of south-west Finland. With the help of transfer functions, an attempt has been made to utilize both documentary and natural proxies. The reconstruction was verified with statistics showing a high degree of validity between the reconstructed and observed temperatures. According to the proxies and modern meteorological observations from Turku, springs have become warmer and have featured a warming trend since around the 1850s. Over the period of 1750 to around 1850, springs featured larger multidecadal low-frequency variability, as well as a smaller range of annual temperature variations. The coldest springtimes occurred around the 1840s and 1850s and the first decade of the 19th century. Particularly warm periods occurred in the 1760s, 1790s, 1820s, 1930s, 1970s and from 1987 onwards, although in this period cold springs occurred, such as the springs of 1994 and 1996. On the basis of the available material, long-term temperature changes have been related to changes in the atmospheric circulation, such as the North Atlantic Oscillation (February-June).