Account books of Sylvester Woodbridge, 1792-1826 (inclusive)

Consists of seven account books kept by Dr. Sylvester Woodbridge (1754-1824) from 1792 until his death containing entries that record charges for medical visits and administration of medicines, and sales of sundry and grocery items, as well as occasional personal notes and the names of Woodbridge's apprentices and their participation in his Southampton, Massachusetts, medical practice. Woodbridge's methods of treatment were typical for the era: he most commonly prescribed vomits and purgatives for patients. Volume 6 contains loose pages and letterbooks tucked in related to accounting and to the amount and type of wood Woodbridge was buying for his house, and papers dated after his death.

Doctor Daniel Brigham's Book, 1789-1810 (inclusive)

Ledger maintained by Dr. Daniel Brigham (1760-1837) containing financial accounts for medical patients treated primarily in Northborough, Westborough, and Marlborough, Massachusetts from 1789 to 1837. The ledger details the charges for medical services and the corresponding payments, often made by payment-in-kind. Common charges included a shilling for a visit and administration of cathartics, emetics, or anodynes. Extraction of a tooth cost eight pence, and Brigham charged one woman nine shillings for delivering her son. A number of entries are obscured by pasted-in newspaper articles.

Kine Pox, 1775-1802 (inclusive)

Ledger containing lists and charts of smallpox inoculation cases and patient case histories of Boston physician John Jeffries (1745-1819), recorded from November 1775 to June 1802. Descriptions include patients’ names, ages, and physical condition, method of inoculation and symptoms. The entries dated 1800-1802 are not in chronological order.

Memoranda Medica of John Perkins, 1750-1773 (inclusive)

Contains notes written by Dr. John Perkins (1698-1781) from 1750 to 1773 on physiology, materia medica, and illness, including symptoms, causes, and treatment of conditions like mumps, dysentery, dropsy, and rheumatism. Also includes observations on children and on various bodily functions. There is an index at the end of the volume.

Observations Medical & Chirurgical by John Perkins, 1724-1774 (inclusive)

Volume kept by Dr. John Perkins (1698-1781) from 1724 to 1774 recording observations on various diseases and medical conditions illustrated with cases from Perkins's practice in Boston, Massachusetts. The cases ranged from epileptic fits, various fevers, and rheumatism to melancholy. His treament methods were standard for the era, mainly prescribing vomits, purges, and spirits, and bleeding patients. Also includes a section listing contradictory opinions among prominent medical writers such as Dutch physician Herman Boerhaave and English physician Thomas Sydenham. An index is located at the end of the volume. Perkins likely began compiling the book in 1765. It contains cases dating from 1724 to 1774.

Cases copied by James Lloyd from Mr. Steed, apothecary in Guy's Hospital, London, 1751-1787 (inclusive)

Contains medical cases copied by James Lloyd (1728-1810), primarily between 1751 and 1754, from Mr. Steed, an apothecary at Guy's Hospital in London, England. The volume has additional medical cases dating from 1780 to 1787. Lloyd transcribed the names, ages, and symptoms of the patients, as well as the medicines and medical care delivered to them. The volume is divided into chapters based on the type of case, which included vision loss; fluor albus, or leucorrhoea; diabetes; and dysentery. There is also a letter pasted into the volume addressed to Dr. Brigham of the Boston Medical Library Association from Lloyd's great-grandson, dated 4 November 1887.

Mr. Cline's lectures on anatomy & surgery, 1799-1800 (inclusive)

Volume containing notes on the lectures of Henry Cline (1750-1827), a surgeon at St. Thomas's Hospital, London, England, that were kept by American medical student John Collins Warren in 1799 and 1800. The lectures were on topics including blood, blood vessels, absorbents, cellular membranes, and the nerves. There are annotations in pencil in an unknown hand throughout the volume.

Historic Letter Collection, 1796-1940 (inclusive). 1844-1872. Joseph Dalton Hooker letters, 1844-1872

Historic Letter Collection, 1796-1940; Joseph Dalton Hooker letters, 1844-1872. HL Hook 1-3. Gray Herbarium Archives, Harvard University, Cambridge, Mass.

Collection of Mary Gardner Marshall, 1795-1957 (inclusive)

Collection consists mainly of correspondence among family members and includes courtship correspondence of J. Doddridge to Julia, 1868-1875, and of Elsa and her future husband, Courtenay Hemenway, 1908-1912. Also included are photographs, genealogical material, a diary, commonplace and wedding books.

Intraspecific Behavioural Diversity in a Freshwater Zooplankton: A study of the fitness consequences of vertical migration behaviour for distinct morphs of Daphnia pulicaria

The literature on niche separation and coexistence between species is large, but there is widespread variation in behavioural strategy between individuals of the same species that has received much less attention. Understanding what maintains this diversity is important because intraspecific behavioural diversity can affect population dynamics and community interactions. Multiple behavioural strategies can arise either as phenotype-dependent ‘conditional strategies’, where phenotypic variation causes individuals to adopt different strategies for optimizing fitness, or as internally-independent ‘alternative strategies’, where multiple fitness peaks exist for individuals and strategic ‘choice’ remains plastic. Though intraspecific variation in stable phenotypes is known to maintain intraspecific behavioural diversity through conditional strategies, when internal conditions are highly plastic or reversible, it is not clear whether individual behaviours are maintained as conditional strategies, or as alternative strategies of equal fitness. In this study, I combine an observational and experimental approach to identify the likely mechanisms maintaining behavioural diversity between hemoglobin-rich and hemoglobin-poor morphs in a natural population of Daphnia pulicaria. In Round Lake, individuals with low hemoglobin migrate daily from the hypolimnion to the epilimnion, whereas individuals with high hemoglobin remain in the hypolimnion. Using high-resolution depth and time sampling, I discovered behavioural diversity both within and among hemoglobin phenotypes. I tested the role of hemoglobin phenotype in maintaining behavioural diversity using automated migration robots that move individuals across the natural environmental gradients in the lake. By measuring the fitness of each morph undergoing either a natural migration behaviour, or the migration of the opposite morph, I found that the fitness of hemoglobin rich and poor morphs in their natural behaviour does not differ, but that Hb-rich individuals can obtain equal fitness from either behaviour, while Hb-poor morphs suffer substantial drops in survivorship in the alternate migration behaviour. Thus, migration behaviour in this system exists as a conditional strategy for some individuals, and as alternative strategies of equal fitness for others. The results of this study suggest that individual limits in the expression of highly flexible internal conditions can reinforce intraspecific behavioural diversity. Few studies have measured the fitness consequences of switching migration strategies and this study provides a rare example in the field.

Longitudinal relationship between cardiorespiratory fitness and academic achievement

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